JP2001022036A - Film unit with lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user himself (herself) to select the propriety of strobe light emission, to obtain an appropriate main object/background density ratio in the case of photographing in a room or at night and to provide a desirable photograph within appropriate exposure in the case of photographing in the daytime or outdoors. SOLUTION: This film unit with a lens is equipped with a photographing mechanism having a photographing lens, a fixed speed shutter device, a diaphragm and a stroboscopic device, and unexposed photographic film is previously loaded in the film unit with a lens. When it is assumed that the shutter speed of the shutter device is T seconds, and the guide number of the stroboscopic device is G (ISO100.m), the film unit satisfies relation being 7.0<=log2(G2)+ log2(1/T)<=12.5 and is equipped with a photometry means outputting a light quantity signal in accordance with the light quantity of an object, and an adjusting mechanism changing exposure to photographic film in accordance with the light quantity signal. The photographic film has at least one photosensitive silver halide emulsion layer incorporating silver halide emulsion whose average aspect ratio is >=4.0.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film unit with a lens capable of taking a photograph having an appropriate density in any photographing environment.

[0002]

2. Description of the Related Art Various types of lens-equipped film units are provided in which a non-exposed photographic film is loaded at the time of manufacture in a unit body incorporating a simple photographing mechanism such as a photographing lens, a shutter device, and a film winding device. Some film units with a built-in flash unit incorporate a flash unit to enable shooting in dark places such as at night or indoors.

[0003] In a film unit with a built-in strobe, a combination of a shutter speed, an aperture value and a film sensitivity is set so as to correspond to the brightness in the daytime. It is designed so that flash photography that is appropriate for a main subject at a shooting distance of about 4 m is performed.

However, when flash photography is performed indoors or outdoors at night using a conventional film unit with a built-in flash and a lens, a main subject such as a person is overexposed, whereas the background is considerably underexposed. I can't get a satisfactory print photo. As one means for solving such a problem, Japanese Patent Application Laid-Open No. 10-33328
As disclosed in Japanese Patent No. 7, there is a method of balancing the density of the main subject and the background by using a film of ISO 600 or more and setting the f-number of the aperture to F8 or less only during flash shooting. However, in this method, the quality is not improved if no strobe is used in indoor or nighttime shooting.If the strobe is used outdoors during the daytime, overexposure exceeding the latitude of the film is caused, and the print quality is greatly reduced. Had disadvantages.

In Japanese Patent Application Laid-Open No. 10-333287,
A method of changing the shutter speed in conjunction with a strobe switch is disclosed, but it is difficult to secure the accuracy of the shutter speed switching in terms of manufacturing appropriateness,
In addition, the low-speed shutter causes a reduction in image quality such as camera shake and the like, which has been a factor of reducing the sharpness of a photographic print.

In Japanese Patent Application Laid-Open No. Hei 10-260507,
A lens-equipped film unit comprising a photometric circuit for detecting the level of subject brightness with respect to a predetermined brightness, and aperture switching means for switching an aperture value according to the level of subject brightness detected by the photometric circuit is disclosed. I have. This patent application further states that it is preferable to control the presence or absence of strobe light emission in accordance with the detection result of the photometric circuit. However, in the film unit with a lens disclosed herein, underexposed photographs can be reduced as compared with the conventional film unit with a lens, but it is not possible to take a photograph in which the density of the main subject and the background is balanced. It turned out to be difficult. There is also a disadvantage that the strobe automatically emits light even in an environment where the strobe must not be used.

In a film unit with a lens disclosed in Japanese Patent Application Laid-Open No. 9-5817, a light amount of a subject is measured by a photoconductive element, and an electromagnet is actuated in accordance with the photometric value. The diaphragm is adjusted by moving the plate. According to this, since exposure control can be automatically performed according to the amount of light of the subject, anyone can easily shoot with an appropriate exposure amount. However, although the film unit with the lens can improve the quality of overexposure, the improvement of the main subject / background density ratio when photographing a low-luminance subject is insufficient.

The present inventors, while studying the application to a film unit with a lens, do not solve the problem even if the device of the photographic film to be loaded or the device of the unit is independently adjusted. For the first time, a solution was found by devising both mechanisms of the unit, and the present invention was found.

[0009]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and enables a user to select an appropriate main subject / background density ratio and whether or not to use a strobe for indoor / night photography. Another object of the present invention is to provide a film unit with a lens which can provide a preferable photograph within a proper exposure regardless of the use of a strobe even during daytime outdoor shooting. That is, an object of the present invention is to provide a film unit with a lens that can provide an appropriate photograph in any photographing environment.

[0010]

The above object has been achieved by the following method.

(1) In a film unit with a lens provided with a photographing mechanism having a photographing lens, a shutter device of a fixed speed, a diaphragm, and a strobe device, and in which an unexposed photographic film is loaded in advance, the shutter speed of the shutter device is determined. T seconds, the guide number of the strobe device is set to G (ISO
100 · m), a photometric unit that satisfies the relationship of 7.0 ≦ log ₂ (G ² ) + log ₂ (1 / T) ≦ 12.5 and outputs a light amount signal corresponding to the object light amount A photographic film having an average aspect ratio (diameter / thickness of a circle having the same area) of not less than 5.0, comprising an adjusting mechanism for changing an exposure amount of the film according to the light amount signal. A lens-equipped film unit comprising at least one photosensitive silver halide emulsion layer containing a silver emulsion.

(2) In a film unit with a lens provided with a photographing mechanism having a photographing lens, a shutter device having a fixed speed, a diaphragm, and a strobe device, and having previously loaded an unexposed photographic film, the shutter speed of the shutter device is set to T seconds, the guide number of the strobe device is set to G (ISO
100 · m), a photometric unit that satisfies the relationship of 7.0 ≦ log ₂ (G ² ) + log ₂ (1 / T) ≦ 12.5 and outputs a light amount signal corresponding to the object light amount An adjusting mechanism for changing an exposure amount of the film in accordance with the light amount signal, and wherein the photographic film is a layer having the highest sensitivity among photosensitive layers having substantially the same color sensitivity. A lens having at least one photosensitive silver halide emulsion layer containing a silver halide emulsion having an average grain size (diameter of a sphere having the same volume) of 1.0 μm or more and 3.0 μm or less. Film unit.

(3) The film unit with a lens according to (1), wherein the silver halide emulsion has an average aspect ratio of 8 or more.

(4) In the photographic film, the layer applied on the photosensitive layer side with respect to the support has a total dry thickness of 32.
The film unit with a lens according to (1), (2) or (3), which is not more than μm.

(5) The film unit with lens as described in (1), (2), (3) or (4), wherein the adjustment mechanism is an exposure amount adjustment by changing an aperture value.

(6) The lens with the lens as described in (1), (2), (3) or (4), wherein the adjustment mechanism is an exposure adjustment by changing the amount of light transmitted through the lens. Film unit.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A film unit with a lens according to the present invention is provided with photometric means for outputting a light amount signal corresponding to a light amount of a subject, and an adjusting mechanism for changing an exposure amount to the film according to the light amount signal. It is characterized by.

As photometric means for measuring the light quantity of the subject,
Most simply, CdS (cadmium sulfide) can be used. In addition, a solar cell, a CCD, a MOS transistor, a photodiode, selenium, or the like may be used. Usually, an element that outputs a photometric result as an electric signal is easily used.

As the means for changing the amount of exposure to the film, a method of changing the aperture value, a method of adjusting the amount of light transmitted to the lens by using an ND filter, or the like can be used. The change of the exposure amount is, in the simplest case, to have a two-stage adjusting means of a large exposure amount and a small exposure amount. When the aperture value is changed, the aperture plate having two types of aperture diameters can be inserted and removed, and when the amount of transmitted light is adjusted, the ND filter can be inserted and removed. In some cases, the exposure amount may be further adjusted in multiple stages, or the exposure amount may be continuously adjusted in a continuous step.

When adjusting the exposure amount in two stages, a predetermined subject luminance to be switched is determined in advance. That is, when the brightness is higher than a predetermined subject brightness, the exposure amount is reduced, and when the brightness is lower than the predetermined brightness, the exposure amount is increased. The signal output by the photometric means is compared with the predetermined luminance in this way, and is connected to a mechanism for switching the exposure amount according to the result of the magnitude. The method of switching the aperture can be realized by a method of physically operating the aperture plate, a method of substantially changing the aperture value by changing the density of the liquid crystal, or the like. As a method of physically operating the aperture plate, as disclosed in Japanese Patent Application Laid-Open No. H10-260507, a shape memory element whose shape changes depending on the presence or absence of energization can be used.

A method of moving the aperture plate by a motor can also be used. Further, as disclosed in JP-A-9-5817, it can be moved by using an electromagnet. The electric power required to move the aperture plate can be obtained from a dry cell or secondary battery for the strobe, or a design that requires the aperture plate to be moved only when the brightness is higher than a predetermined level. You may get.

In the present invention, an adjustable brightest aperture said photometry means is set when object luminance is low detected when the F _1, satisfy the relationship of 4.0 ≦ F ₁ ≦ 8.0 desirable. Most preferably, the relationship of 5.0 ≦ F ₁ ≦ 7.0 is satisfied.

However, when the exposure amount is adjusted by the transmitted light amount of the ND filter or the like, the regulation is performed by the aperture value which gives substantially the same exposure amount. The aperture value was determined based on the brightness required to capture the background in nighttime indoor photography and the depth of field required for a film with a lens having a fixed focus and a fixed shutter speed. In order to achieve the above object, it is desirable to use a film of ISO 1000 or more. By satisfying these requirements, a high shutter speed can be set, and a sharp picture free of camera shake and subject shake can be taken.

[0024] In the present invention, an adjustable darkest aperture said photometry means is set when a high subject luminance detected when the F _2, satisfies the relationship 12.0 ≦ F ₂ ≦ 32 It is desirable. By satisfying this requirement, even if a high-brightness subject is photographed outdoors during the daytime, the exposure to the film can be kept within an appropriate exposure range, and a high-quality photographic print can be provided. .

Further, the film unit with a lens according to the present invention is designed so that the density ratio between the main subject and the background at the time of using a strobe is properly balanced by 7.0 ≦ log ₂ (G ² ) + log ₂ (1 / T). The objective is achieved by satisfying the relationship of 1) ≦ 12.5. Here, the shutter speed of the shutter device is T seconds, and the guide number of the strobe device is G (ISO100 · m). As a result of extensive studies by the inventors, it has been found that when the above relationship is satisfied, the density ratio between the main subject irradiated with the strobe and the background where the strobe light does not reach is appropriately reproduced on the print. By combining the guide number, shutter speed and the aperture switching method that satisfy this condition,
It has been found that a print having an appropriate exposure amount for the entire print and an appropriate main subject / background density ratio can be provided. When the above relationship is satisfied, the guide number (G) preferably has a value in the range of 0.5 to 8.0, and more preferably has a value in the range of 2.0 to 7.0. The shutter speed (T) is 1/3
It is preferably a value in the range of 0 second to 1/250 second,
More preferably, the value is in the range of 1/60 sec to 1/150 sec.

Table 1 shows the experimental results. Using a film of ISO1600 and various apertures of F6.7, various indoor photography was performed under the conditions shown in Table 1. The ratio of prints in which an appropriate main subject / background density ratio was realized from the obtained prints was calculated.

[0027]

[Table 1]

The film unit with a lens according to the present invention comprises:
More preferably, the relationship of 9.0 ≦ log ₂ (G ² ) + log ₂ (1 / T) ≦ 11.0 is satisfied.

When the film unit with a lens according to the present invention is photographed in a low-luminance environment, a strobe is used at the discretion of the user. When a strobe is used in such a shooting environment, a subject to which the strobe is irradiated and a background illuminated by a background light source to which the strobe does not reach are simultaneously displayed on the screen. Even in such a case, in order to provide a photographic print with appropriate color reproduction, use a color negative film capable of faithful color reproduction and match the color reproducibility of the color negative film loaded in the film with lens It is preferable to use a strobe device having such a spectral energy distribution.
"Match" means that the strobe light color seen from the color negative film is close to the background light source color seen from the color negative film, and considering the shooting frequency distribution, a white fluorescent light is selected as the background light source color. The most preferable method is to set the spectral energy distribution of the strobe to be recorded on a color film with a color close to the light color.

Next, the photographic film (hereinafter, also referred to as a light-sensitive material or light-sensitive material) used in the present invention will be described.

The photosensitive material used in the present invention may have at least one photosensitive layer provided on a support. A typical example is a plurality of (preferably two or more, more preferably two to four) silver halide emulsion layers having substantially the same color sensitivity but different sensitivities on a support. A silver halide photographic material having at least one photosensitive layer comprising

In the case of an ordinary silver halide color light-sensitive material, at least one or more light-sensitive layers having color sensitivity to blue light, green light and red light are provided. Also,
In addition to the above-mentioned three layers, a layer which gives a multilayer effect to the red-sensitive layer may be arranged as described in JP-A-61-34541.

In the case of a silver halide photographic light-sensitive material which forms a monotone dye image by color development processing, or in the case of a silver halide photographic light-sensitive material which forms a silver image by black-and-white development processing, A light-sensitive layer having color sensitivity to visible light over the entire layer is provided.

Between the silver halide light-sensitive layers and the uppermost layer,
A non-photosensitive layer such as an intermediate layer may be provided as the lowermost layer.

The intermediate layer is described in JP-A-61-43748.
No. 59-113438, No. 59-113440
Couplers and DIR compounds as described in JP-A Nos. 61-20037 and 61-20038 may be contained, and a color mixture inhibitor may be contained as usually used.

The average aspect ratio of the silver halide emulsion contained in the light-sensitive material according to the first embodiment of the present invention will be described.

The average aspect ratio referred to here has exactly the same definition as that generally used in the art. That is, the value obtained by dividing the diameter (equivalent circle diameter) of a circle having the same area as the principal plane (the plane having the largest area; in most cases, two parallel (111) planes having substantially equal areas) by the thickness of the particle. , The aspect ratio of the particles, and the average aspect ratio is 10
It is a simple average value of the aspect ratio of each of the 00 particles.

The light-sensitive material used in the present invention preferably has at least one light-sensitive silver halide emulsion layer containing a silver halide emulsion having an average aspect ratio of 4.0 or more. More preferably, the average aspect ratio is
It is 8.0 or more and 30.0 or less.

Any layer may contain a silver halide emulsion having an average aspect ratio of 4.0 or more. In the present invention, a specific layer is not particularly conceived as a layer containing an emulsion having a high aspect ratio, but the inclusion of the emulsion having a high aspect ratio in a layer far from the support can reduce the sharpness of the obtained image. Is preferable and preferable. It is also preferable that all the emulsions are silver halide emulsions having an aspect ratio of 4.0 or more.

The present inventor has found that 7.0 ≦ log ₂ (G ² ) + log
₂ During the trial production of a film unit with a lens that falls within the range of (1 / T) ≦ 12.5, a natural photograph can be obtained within the range of the guide number and the shutter speed, but with a certain probability it is slightly blurred. I noticed that the photos were mixed. As a result of intensive studies, the present inventors have found that a natural and high-quality photograph can be obtained by incorporating a silver halide emulsion having an average aspect ratio of 4.0 or more into a photographic film to be used.

The average grain size of the silver halide emulsion contained in the light-sensitive material according to the second embodiment of the present invention will be described.

The particle size can be measured by a conventional method.
The average particle size is an average value of the particle sizes of 500 or more particles measured by an ordinary method. The silver halide grains in the silver halide emulsion include those having regular crystals such as cubic, octahedral and tetradecahedral, and those having irregular crystal forms such as spherical and plate-like. However, the grain size referred to in the present invention is expressed as the diameter of a sphere having the same volume as each silver halide grain. When the size of the cube is represented by its side length, the size of the flat plate may be represented by the diameter of a circle having the same area, etc.

The light-sensitive material used in the present invention is preferably a layer having the highest sensitivity among the light-sensitive layers having substantially the same color sensitivity, and more preferably a layer having a red, green and blue color. In the most sensitive layer, the average particle size is 1.0 μm
As described above, it is desirable to have at least one photosensitive silver halide emulsion layer containing a silver halide emulsion of 3.0 μm or less. The average particle size is more preferably 1.1
It is not less than μm and not more than 2.2 μm.

The inventor of the present invention has determined the preferred particle size range by experimentally producing several film units with lenses and by trial and error. The reason why this range is preferred is unknown at this time. In general, it is known that as the grain size of silver halide increases, the sensitivity of the photosensitive material increases, but the image quality deteriorates. On the other hand, it is also known that in a film unit with a lens having a fixed-speed shutter, the image quality obtained by increasing the depth of field by increasing the sensitivity of the photosensitive material as much as possible and increasing the aperture value is known. I have. 1.0 μm or more, 3.0 μm
It is presumed that the following means that, as long as the image quality as a photosensitive material is acceptable, the higher the sensitivity, the higher the image quality as a whole with the lens-equipped film unit.

The silver halide emulsion used in the present invention is:
It preferably has a dislocation line. Dislocation lines of tabular grains are described, for example, in J. Am. F. Hamilton, Photo. Sci. En
g. , 11, 57, (1967); Shiozaw
a, J. et al. Soc. Photo. Sci. Japan, 3
5, 213, (1972) can be observed by a direct method using a transmission electron microscope at a low temperature. That is, the silver halide grains taken out from the emulsion so as not to apply enough pressure to generate dislocation lines on the grains are placed on a mesh for observation with an electron microscope, and the sample is prepared so as to prevent damage (printout, etc.) by the electron beam. Observation is carried out by a transmission method in a state where is cooled. At this time, the higher the thickness of the particles, the more difficult it is for an electron beam to pass therethrough.
The use of an electron microscope (200 kV or more for particles having a thickness of μm) enables more clear observation. From the photograph of the particles obtained by such a method, the position and the number of dislocation lines for each particle when viewed from the direction perpendicular to the main plane can be obtained.

The number of dislocation lines is preferably 10 or more per grain on average. More preferably, an average of 20 per particle
More than a book. When dislocation lines are densely present or when dislocation lines are observed to intersect each other, the number of dislocation lines per grain may not be clearly counted. However, even in these cases, it is possible to count to about 10, 20, or 30 pieces, and it can be clearly distinguished from the case where there are only a few pieces. The average number of dislocation lines per particle is determined as a number average by counting the number of dislocation lines for 100 particles or more.

The tabular grains of the present invention desirably have a uniform dislocation dose distribution between grains. In the emulsion of the present invention, silver halide grains containing 10 or more dislocation lines per grain preferably occupy 100 to 50% (number) of all grains, more preferably 100 to 70%, particularly preferably 100 to 100%. Or 90%.

If it is less than 50%, it is not preferable in terms of homogeneity between particles.

In the present invention, when determining the ratio of the particles containing dislocation lines and the number of dislocation lines, it is preferable to directly observe the dislocation lines for at least 100 particles.
More preferably 200 particles or more, particularly preferably 300 particles
Observe for more than particles.

It is advantageous to use gelatin as a protective colloid used in the preparation of the emulsion used in the present invention and as a binder for other hydrophilic colloid layers, but it is also possible to use other hydrophilic colloids. it can.

For example, gelatin derivatives, graft polymers of gelatin and other polymers, proteins such as albumin and casein; cellulose derivatives such as hydroxyethylcellulose, carboxymethylcellulose and cellulose sulfates, sodium alginate and starch derivatives. Various sugar derivatives such as mono- or copolymers such as polyvinyl alcohol, polyvinyl alcohol partial acetal, poly-N-vinylpyrrolidone, polyacrylic acid, polymethacrylic acid, polyacrylamide, polyvinylimidazole and polyvinylpyrazole A conductive polymer substance can be used.

Examples of gelatin include lime-treated gelatin, acid-treated gelatin and Bull. Soc. Sci. Ph
oto. Japan. No. 16. Enzyme-treated gelatin as described in P30 (1966) may be used, and a hydrolyzate or enzymatic degradation product of gelatin can also be used.

The emulsion used in the present invention is preferably washed with water for desalting and dispersed in a newly prepared protective colloid. The washing temperature can be selected according to the purpose,
It is preferable to select within the range of 0 ° C. The pH at the time of washing can be selected according to the purpose, but is preferably selected from 2 to 10. More preferably, it is in the range of 3 to 8. The pAg at the time of washing can be selected according to the purpose, but is preferably selected from 5 to 10. The method for washing can be selected from noodle washing, dialysis using a semipermeable membrane, centrifugal separation, coagulation sedimentation, and ion exchange. In the case of the coagulation sedimentation method, a method using a sulfate, a method using an organic solvent, a method using a water-soluble polymer, a method using a gelatin derivative, and the like can be selected.

In the preparation of the emulsion used in the present invention, for example, at the time of grain formation, at the desalting step, at the time of chemical sensitization, or before the coating, it is preferable to use a salt of a metal ion depending on the purpose. In the case of doping the grains, it is preferable to add them at the time of grain formation, when modifying the grain surface or when using as a chemical sensitizer, after grain formation and before the end of chemical sensitization. A method of doping the whole grain and a method of doping only the core part or only the shell part of the grain can be selected. For example, Mg, Ca, Sr, B
a, Al, Sc, Y, La, Cr, Mn, Fe, Co,
Ni, Cu, Zn, Ga, Ru, Rh, Pd, Re, O
s, Ir, Pt, Au, Cd, Hg, Tl, In, S
n, Pb, and Bi can be used. These metals can be added in the form of ammonium salts, acetates, nitrates, sulfates, phosphates, hydroxides, or salts that can be dissolved at the time of particle formation, such as six-coordinate complex salts and four-coordinate complex salts. For example, CdBr ₂ , CdCl ₂ , Cd (NO ₃ ) ₂ , P
b (NO ₃ ) ₂ , Pb (CH ₃ COO) ₂ , K ₃ [Fe
(CN) ₆ ], (NH ₄ ) ₄ [Fe (CN) ₆ ], K ₃
IrCl ₆ , (NH ₄ ) ₃ RhCl ₆ , K ₄ Ru (C
N) ₆ . The ligand of the coordination compound can be selected from halo, aquo, cyano, cyanate, thiocyanate, nitrosyl, thionitrosyl, oxo, and carbonyl. These may be used alone or in combination of two or more metal compounds.

The metal compound is preferably added after being dissolved in water or a suitable organic solvent such as methanol or acetone. In order to stabilize the solution, a method of adding an aqueous solution of hydrogen halide (eg, HCl, HBr) or an alkali halide (eg, KCl, NaCl, KBr, NaBr) can be used. If necessary, an acid or alkali may be added. The metal compound may be added to the reaction vessel before the formation of the particles or may be added during the formation of the particles. Further, a water-soluble silver salt (eg, AgNO ₃ ) or an alkali halide aqueous solution (eg, NaCl, K)
(Br, KI) can be added continuously during the formation of silver halide grains. Further, a solution independent of the water-soluble silver salt and alkali halide may be prepared and added continuously at an appropriate time during grain formation. It is also preferable to combine various addition methods.

In some cases, a method of adding a chalcogen compound during preparation of an emulsion as described in US Pat. No. 3,772,031 is also useful. In addition to S, Se, and Te, cyanide, thiocyanate, selenocyanic acid, carbonate, phosphate, and acetate may be present.

The silver halide grains used in the present invention may be subjected to at least one of sulfur sensitization, selenium sensitization, gold sensitization, palladium sensitization or noble metal sensitization, and reduction sensitization at any time during the production of a silver halide emulsion. Can be applied in the step. It is preferable to combine two or more sensitization methods. Various types of emulsions can be prepared depending on the step of chemical sensitization. There are a type in which a chemical sensitizing nucleus is embedded in the grain, a type in which the chemical sensitizing nucleus is embedded in a position shallow from the grain surface, and a type in which a chemical sensitizing nucleus is formed on the surface. In the emulsion used in the present invention, the location of the chemical sensitization nucleus can be selected according to the purpose. Generally, the case where at least one type of chemical sensitization nucleus is formed near the surface is preferred.

In the emulsion used in the present invention,
One of the possible chemical sensitizations is chalcogen sensitization and noble metal sensitization.
Feeling alone or in combination, as described by James (TH Ja
mes), The Photographic Process, 4th
Edition, Macmillan, 1977, (TH James)
s, The Theory of the Photo
graphic Process, 4th ed, Ma
Chillan, 1977) at pages 67-76.
Can be carried out using active gelatin, and
Research Disclosure, Volume 120, 1974
April, 12008; Research Disclosure, 3
4, June 1975, 13452, U.S. Pat.
No. 42,361, No. 3,297,446, No. 3,
No. 772,031, No. 3,857,711, No. 3,
Nos. 901,714, 4,266,018, and
No. 3,904,415 and British Patent No. 1,31
No. 5,755, pAg 5-10, pH 5
8 and a temperature of 30 to 80 ° C, sulfur, selenium, ter
Gold, platinum, palladium, iridium or
A plurality of combinations of sensitizers can be used. For precious metal sensitization
Gold, platinum, palladium, iridium, etc.
Genus salts, among which gold sensitization,
Sensitization and a combination of both is preferred. In case of gold sensitization
Are chloroauric acid, potassium chloroaurate, potassium
-Public sources such as lithiocyanates, gold sulfides, and gold selenides
Known compounds can be used. Palladium compounds
Palladium divalent salt or tetravalent salt is meant. preferable
The palladium compound is represented by R₂PdX ₆Or R₂PdX₄
Is represented by Where R is a hydrogen atom or an alkali metal atom
Or an ammonium group. X represents a halogen atom
Represents chlorine, bromine or iodine atom.

Specifically, K ₂ PdCl ₄ , (NH ₄ )
₂ PdCl ₆ , Na ₂ PdCl ₄ , (NH ₄ ) ₂ PdC
l ₄ , Li ₂ PdCl ₄ , Na ₂ PdCl ₆ or K ₂
PdBr ₄ is preferred. The gold compound and the palladium compound are preferably used in combination with a thiocyanate or a selenocyanate.

As sulfur sensitizers, hypo, thiourea compounds, rhodanine compounds and US Pat. No. 3,857,
Nos. 711, 4,266,018 and 4,0
No. 54,457 can be used. Chemical sensitization can also be performed in the presence of a so-called chemical sensitization aid. Useful chemical sensitization aids include azaindene, azapyridazine, azapyrimidine,
Compounds known to suppress fog and increase sensitivity during the process of chemical sensitization are used. Examples of the chemical sensitization aid modifier are described in U.S. Pat. Nos. 2,131,038, 3,411,914, 3,554,757, JP-A-58-126526 and the above-mentioned duffin. "Photographic emulsion chemistry", pp. 138-143.

The emulsion used in the present invention is preferably used in combination with gold sensitization. The preferred amount of the gold sensitizer is 1 × 10 ⁻⁴ to 1 × 10 ⁻⁷ mol, more preferably 1 × 10 ^{−5 to} 5 × 10 ⁻⁷ mol per mol of silver halide. The preferred range of the palladium compound is 1 × 10
⁻³ to 5 × 10 ⁻⁷ . The preferred range of the thiocyan compound or selenocyan compound is from 5 × 10 ⁻² to 1 × 10 ⁻⁶ .

The preferred amount of sulfur sensitizer used for the silver halide grains of the present invention is 1 × per mole of silver halide.
It is 10 ^-4 to 1 × 10 ^-7 mol, more preferably 1 × 10 ^{-5 to} 5 × 10 ^-7 mol.

Selenium sensitization is a preferred sensitization method for the emulsion used in the present invention. In selenium sensitization, a known unstable selenium compound is used. Specifically, colloidal metal selenium and selenoureas (for example, N,
Selenium compounds such as N-dimethylselenourea, N, N-diethylselenourea), selenoketones, and selenoamides can be used. It may be preferable to use selenium sensitization in combination with sulfur sensitization and / or noble metal sensitization.

It is preferable that the silver halide emulsion used in the present invention is reduction-sensitized during grain formation, after grain formation and before or during chemical sensitization, or after chemical sensitization.

Here, reduction sensitization is a method in which a reduction sensitizer is added to a silver halide emulsion, or pAg 1 called silver ripening.
A method of growing or ripening in a low pAg atmosphere of ~ 7,
Any method of growing or ripening in a high pH atmosphere of pH 8 to 11, which is called high pH ripening, can be selected. Also, two or more methods can be used in combination.

The method of adding a reduction sensitizer is a preferable method since the level of reduction sensitization can be finely adjusted.

Examples of the reduction sensitizer include stannous salts,
Ascorbic acid and its derivatives, amines and polyamines, hydrazine derivatives, formamidinesulfinic acid, silane compounds and borane compounds are known. For the reduction sensitization of the present invention, these known reduction sensitizers can be selected and used, and two or more compounds can be used in combination. As the reduction sensitizer, stannous chloride, thiourea dioxide, dimethylamine borane, ascorbic acid and derivatives thereof are preferred compounds. Since the addition amount of the reduction sensitizer depends on the emulsion production conditions, it is necessary to select the addition amount, but an appropriate range is 10 ^-7 to 10 ^-3 mol per mol of silver halide.

The reduction sensitizer is dissolved in water or an organic solvent such as alcohols, glycols, ketones, esters, and amides and added during grain growth.
It may be added to the reaction vessel in advance, but a method of adding at an appropriate time during the particle growth is preferable. Alternatively, a reduction sensitizer may be added in advance to the water solubility of a water-soluble silver salt or a water-soluble alkali halide, and silver halide grains may be precipitated using these aqueous solutions. It is also a preferred method to add the solution of the reduction sensitizer in several portions as the grains grow, or to add the solution continuously for a long time.

It is preferable to use an oxidizing agent for silver during the production process of the emulsion used in the present invention. The oxidizing agent for silver refers to a compound having an action of converting metallic silver into silver ions. In particular, a compound that converts extremely fine silver grains by-produced during the formation process of silver halide grains and the chemical sensitization process into silver ions is effective. The silver ion generated here may form a water-insoluble silver salt such as silver halide, silver sulfide or silver selenide, or a water-soluble silver salt such as silver nitrate. May be formed. The oxidizing agent for silver is inorganic,
It may be an organic substance. As the inorganic oxidizing agent, for example, ozone, hydrogen peroxide and its adduct (for example, N
_{aBO 2 · H 2 O 2 ·} 3H 2 O, 2NaCO 3 · 3H 2
_{O 2, Na 3 P 2 O} 7 · 2H 2 O 2, 2Na 2 SO 4 ·
H ₂ O ₂ .2H ₂ O), peroxy acid salts (for example, K ₂
S ₂ O ₈ , K ₂ C ₂ O ₆ , K ₂ P ₂ O ₈ ), peroxy complex compound (for example, K ₂ [Ti (O ₂ ) C ₂ O ₄ ] ·
3H ₂ O, 4K ₂ SO ₄ .Ti (O ₂ ) OH.SO _4.
2H ₂ O, Na ₃ [VO (O ₂ ) (C ₂ H ₄ ) ₂ ] · 6
H ₂ O), permanganates (eg, KMnO ₄ ), chromates (eg, K ₂ Cr ₂ O ₇ ), oxyacid salts, halogen elements such as iodine and bromine, perhalates ( For example, potassium periodate), salts of high valent metals (eg, potassium hexacyanoferrate) and thiosulfonates.

Examples of the organic oxidizing agent include quinones such as p-quinone, organic peroxides such as peracetic acid and perbenzoic acid, and compounds that release active halogen (for example, N-
Bromsuccinimide, chloramine T, chloramine B)
Is given as an example.

Preferred oxidizing agents in the emulsion used in the present invention are ozone, hydrogen peroxide and its adducts, halogen elements, inorganic oxidizing agents of thiosulfonates and organic oxidizing agents of quinones. It is a preferred embodiment to use the above-described reduction sensitization and an oxidizing agent for silver in combination. The method can be selected from a method of performing reduction sensitization after using an oxidizing agent, a method reverse thereto, or a method of coexisting the two simultaneously. These methods can be selectively used in both the grain formation step and the chemical sensitization step.

The photographic emulsion used in the present invention can contain various compounds for the purpose of preventing fogging during the production process, storage or photographic processing of the photographic material, or stabilizing photographic performance. . That is, thiazoles, for example, benzothiazolium salts, nitroimidazoles, nitrobenzimidazoles, chlorobenzimidazoles, bromobenzimidazoles, mercaptothiazoles, mercaptobenzothiazoles, mercaptobenzimidazoles, mercaptothiadiazoles, amino Triazoles, benzotriazoles, nitrobenzotriazoles, mercaptotetrazole (especially 1-phenyl-5-mercaptotetrazole);
Mercaptopyrimidines; mercaptotriazines; thioketo compounds such as oxadrinethione; azaindenes such as triazaindenes, tetraazaindenes (especially 4-hydroxy-substituted (1,3,3
a, 7) known as antifoggants or stabilizers, such as titraazaindenes) and pentaazaindenes;
Many compounds can be added. For example, U.S. Patent Nos. 3,954,474 and 3,982,947,
Those described in JP-B-52-28660 can be used. One of the preferred compounds is disclosed in JP-A-63-21.
2932. Antifoggants and stabilizers are used at various times before, during and after particle formation, during the water washing step, during dispersion after water washing, before chemical sensitization, during chemical sensitization, after chemical sensitization, and before coating. It can be added according to the purpose. In addition to exhibiting the original antifogging and stabilizing effects by adding during emulsion preparation, it controls the crystal wall of the grains, reduces the grain size, reduces the solubility of the grains, controls the chemical sensitization, It can be used for various purposes such as controlling the arrangement of dyes.

The photographic emulsion used in the present invention is preferably spectrally sensitized by a methine dye or the like to exhibit the effects of the present invention. Dyes used include cyanine dyes, merocyanine dyes, complex cyanine dyes, complex merocyanine dyes, holopolar cyanine dyes, hemicyanine dyes, styryl dyes and hemioxonol dyes. Particularly useful dyes are those belonging to the cyanine dyes, merocyanine dyes, and complex merocyanine dyes. Any of nuclei usually used as basic heterocyclic nuclei in cyanine dyes can be applied to these dyes. That is, for example, a pyrroline nucleus, an oxazoline nucleus,
Thiozoline nucleus, pyrrole nucleus, oxazole nucleus, thiazole nucleus, selenazole nucleus, imidazole nucleus, tetrazole nucleus, pyridine nucleus; nuclei in which alicyclic hydrocarbon rings are fused to these nuclei; and aromatic hydrocarbon rings in these nuclei Fused nuclei, for example, indolenine nucleus, benzoindolenine nucleus, indole nucleus, benzoxadol nucleus, naphthoxazole nucleus, benzothiazole nucleus, naphthothiazole nucleus, benzoselenazole nucleus, benzimidazole nucleus, quinoline nucleus it can. These nuclei may have a substituent on a carbon atom.

The merocyanine dye or the complex merocyanine dye includes, as a nucleus having a ketomethylene structure, for example,
Pyrazolin-5-one nucleus, thiohydantoin nucleus, 2-thiooxazolidine-2,4-dione nucleus, thiazolidine-
A 5- or 6-membered heterocyclic nucleus such as a 2,4-dione nucleus, a rhodanine nucleus and a thiobarbituric acid nucleus can be applied.

These sensitizing dyes may be used alone or in combination, and the combination of sensitizing dyes is often used particularly for supersensitization. Representative examples are U.S. Pat. Nos. 2,688,545 and 2,972.
No. 7,229, No. 3,397,060, No. 3,5
No. 22,052, No. 3,527,641, No. 3,
Nos. 617,293, 3,628,964, 3,666,480, 3,672,898, 3,679,428, 3,703,377,
Nos. 3,769,301 and 3,814,609
No. 3,837,862, No. 4,026,70
7, UK Patent Nos. 1,344,281 and 1,50
7,803, JP-B-43-4936, 53-12
No. 375, JP-A-52-110618, JP-A-52-10
No. 9925.

In addition to the sensitizing dye, the emulsion may contain a dye which does not itself have a spectral sensitizing effect or a substance which does not substantially absorb visible light and exhibits supersensitization.

The sensitizing dye may be added to the emulsion at any stage in the preparation of the emulsion which has hitherto been known to be useful. Most commonly, it is performed after completion of chemical sensitization but before coating, but US Pat.
As described in JP-A-8-969 and JP-A-4225666, spectral sensitization may be carried out simultaneously with chemical sensitization by simultaneous addition with a chemical sensitizer.
It can be carried out prior to chemical sensitization as described in No. 928, or it can be added before the completion of silver halide grain precipitation to start spectral sensitization. Furthermore, these compounds may be added separately as taught in U.S. Pat. No. 4,225,666, i.e., some of these compounds may be added prior to chemical sensitization and the remainder chemically sensitized. It is also possible to add the silver halide grains after the silver halide grains have been formed, and may be added at any time during the formation of silver halide grains, including the method disclosed in U.S. Pat. No. 4,183,756.

The amount of addition was 4 × / mol of silver halide.
It can be used at 10 ⁻⁶ to 8 × 10 ⁻³ mol.

The light-sensitive material used in the present invention is required to have granularity and sharpness in addition to sensitivity, and when the light-sensitive material is a color negative film, it is required to have better color reproducibility and suitability for a fluorescent lamp. It is desirable that the color reproducibility has a spectral sensitivity based on the RGB color matching function so that faithful color reproduction can be performed.
It is a preferable means to realize using the color-sensitive layer. In addition, by creating a color negative film capable of reproducing colors close to such faithful color reproduction, the color of a white fluorescent lamp is not recorded in a greenish color unlike a conventional color negative film. Will be recorded. This performance is a very important property for producing a photographic print with favorable color reproduction.

The latitude of the photosensitive material is also important. When a color negative film is used in the present invention, it is preferable to have a latitude in which an appropriate photographic print can be obtained in an exposure amount of -1 to +4, and more preferably in an exposure amount of -2 to +5. That is.

In the light-sensitive material used in the present invention, the total dry thickness of the layer coated on the photosensitive layer side with respect to the support is preferably 32 μm or less, more preferably 10 μm or more and 25 μm or less. .

The present inventor has found that 7.0 ≦ log ₂ (G ² ) + log
_{2 In} a film unit with a lens falling within the range of (1 / T) ≦ 12.5, a natural and high-quality photograph can be obtained by incorporating a silver halide emulsion having an average aspect ratio of 4.0 or more into a photographic film. It is desired to describe the fact that the present invention has been achieved. This effect was remarkable when the dry total film thickness was 32 μm or less.

Also, 7.0 ≦ log ₂ (G ² ) + log
_{2 In the} film unit with a lens falling within the range of (1 / T) ≦ 12.5, the layer having the highest sensitivity among the photosensitive layers whose photosensitive materials have substantially the same color sensitivity has an average particle size of (Diameter of a sphere of the same volume) is 1.0 μm or more;
It was found that a natural and high-quality photograph containing a silver halide emulsion of 0 μm or less was obtained, and the present invention was described. This effect was remarkable when the dry total film thickness was 32 μm or less. .

Here, the total dry film thickness means a commercially available contact-type film thickness meter (Anritsu Electric Co., Ltd. K-) under the condition of humidity control at a temperature of 25 ° C. and a humidity of 25% for 2 days. 402BSTAN
Display with the value measured in D). The sum of the dry film thicknesses of all the hydrophilic colloid layers on the side having the emulsion layer (that is, the total dry film thickness) is obtained by removing the thickness of the dried sample and the coating layer on the support having the emulsion layer. Is determined by the difference from the thickness of

The thickness of each layer of the multilayer silver halide color light-sensitive material can be measured by enlarging and photographing a cross section using a scanning electron microscope. In scanning electron microscope measurement, the sample must be measured under normal vacuum, and the condition of the moisture-dried sample cannot be maintained. It may not be a thickness measurement. For this reason, sample preparation methods such as freeze-drying have been attempted, but are not sufficient. The measurement by cross-sectional imaging with a scanning electron microscope is used as a means for calculating the thickness of each layer of the dried sample based on the value of the film thickness by a contact film thickness meter.

In the light-sensitive material used in the present invention, a plurality of silver halide emulsion layers constituting each unit light-sensitive layer are
German Patent No. 1,121,470 or British Patent No. 9
As described in JP-A No. 23,045, a two-layer structure of a high-speed emulsion layer and a low-speed emulsion layer can be preferably used. Usually, it is preferable to arrange them so that the light sensitivity decreases sequentially toward the support, and a non-photosensitive layer may be provided between the respective halogen emulsion layers. Also, Japanese Patent Application Laid-Open No.
No. 12751, No. 62-200350, No. 62-20
As described in JP-A Nos. 6541 and 62-206543, a low-speed emulsion layer may be provided on the side farther from the support, and a high-speed emulsion layer may be provided on the side closer to the support.

As a specific example, from the side farthest from the support,
For example, a low-sensitivity blue-sensitive layer (BL) / a high-sensitivity blue-sensitive layer (BH) / a high-sensitivity green-sensitive layer (GH) / a low-sensitivity green-sensitive layer (GL) / a high-sensitivity red-sensitive layer (RH) / Low-sensitivity red-sensitive layer (RL) or BH / BL / GL / GH / R
H / RL, or BH / BL / GH / GL / RL /
They can be installed in the order of RH.

As described in JP-B-55-34932, the layers may be arranged in the order of blue-sensitive layer / GH / RH / GL / RL from the farthest side from the support. JP-A-56-25738 and JP-A-62-6393.
As described in the specification of JP-A No. 6, a blue-sensitive layer / GL / RL / GH / RH can be provided in this order from the farthest side from the support.

As described in JP-B-49-15495, the upper layer is a silver halide emulsion layer having the highest sensitivity, the middle layer is a silver halide emulsion layer having a lower sensitivity, and the lower layer is a layer having a lower sensitivity than the middle layer. Further, there is an arrangement in which a silver halide emulsion layer having a low sensitivity is disposed and three layers having different sensitivities are sequentially reduced in sensitivity toward a support. Even when such three layers having different sensitivities are used, as described in JP-A-59-202264, a medium-speed emulsion layer / They may be arranged in the order of high-speed emulsion layer / low-speed emulsion layer.

In addition, a high-speed emulsion layer / low-speed emulsion layer / medium-speed emulsion layer, or a low-speed emulsion layer / medium-speed emulsion layer / high-speed emulsion layer may be arranged in this order.

The arrangement may be changed as described above even in the case of four or more layers.

As described above, various layer configurations and arrangements can be selected according to the purpose of each photosensitive material.

The above-mentioned various additives are used in the light-sensitive material used in the present invention, but other various additives can be used according to the purpose.

These additives are described in more detail in Research Disclosure Item 17643 (1978).
Item 18716 (January 1979)
Jan.) and Item 308119 (December 1989), and the relevant portions are summarized in the table below.

Additive type RD17643 RD18716 RD308119 1 Chemical sensitizer page 23, page 648, right column, page 996 2 Sensitivity enhancer Same as above 3 Spectral sensitizer, page 23-24, page 648, right column-996 right-998 right Super strong Sensitizer Page 649 Right column 4 Brightener 24 Page 647 Page Right column 998 Right 5 Antifoggant, Page 24 to 25 Page 649 Right column 998 Right to 1000 Right and Stabilizer 6 Light absorber, 25 to 26 649 Page right column to 1003 left to 1003 right Filter dye, page 650 Left column UV absorber 7 Stain inhibitor 25 page right column 650 left to right column 1002 right 8 Dye image stabilizer 25 page 1002 right 9 Hardener 26 page 651 Page left column 1004 right to 1005 left 10 Binder page 26 Same as above 1003 right to 1004 right 11 Plasticizer, lubricant 27 page 650 Page right column 1006 left to 1006 right 12 Coating aid, page 26 to 27 Same as above 1005 left to 1006 left Surfactant 13 static page 27 Same as above 1006 right to 1007 left inhibitor 14 matting agent 1008 left to 1009 left.

Further, in order to prevent deterioration of photographic performance due to formaldehyde gas, US Pat.
It is preferable to add a compound capable of being fixed by reacting with formaldehyde described in JP-A No. 7 or 4,435,503 to the photosensitive material.

Various color couplers can be used in the light-sensitive material used in the present invention, and specific examples thereof are described in Research Disclosure No. 17643, VII-
Nos. C to G and the same No. 307105, VII-CG.

As the yellow coupler, for example, US Pat. Nos. 3,933,501 and 4,022,620
No. 4,326,024 and 4,401,75
No. 2, No. 4,248,961, Japanese Patent Publication No. 58-107
No. 39, British Patent Nos. 1,425,020 and 1,4
No. 76,760; U.S. Pat. Nos. 3,973,968; 4,314,023; 4,511,649;
Those described in EP 249,473A and the like are preferred.

As the magenta coupler, 5-pyrazolone and pyrazoloazole compounds are preferable, and US Pat. Nos. 4,310,619 and 4,351,897.
No. 3,073,636; U.S. Pat.
No. 1,432, No. 3,725,067, Research
Disclosure No. 24220 (June 1984
), JP-A-60-33552, Research Disclosure No. 24230 (June 1984), JP-A-60-43659, JP-A-61-72238, and JP-A-60-72238.
No. 35730, No. 55-118034, No. 60-18
No. 5,951, U.S. Pat. Nos. 4,500,630, 4,540,654, 4,556,630, and WO 88/04795 are particularly preferred.

Examples of the cyan coupler include phenol type and naphthol type couplers.
No. 52,212, No. 4,146,396, No. 4,
Nos. 228,233, 4,296,200, 2,369,929, 2,801,171, 2,772,162, 2,895,826,
No. 3,772,002 and No. 3,758,308
No. 4,334,011, No. 4,327,17
3, West German Patent Publication No. 3,329,729, European Patent Nos. 121,365A and 249,453A, U.S. Patent Nos. 3,446,622, and 4,333,999.
No. 4,775,616, No. 4,451,55
No. 9, No. 4,427,767, No. 4,690, 8
No. 89, No. 4,254,212, No. 4,296,
199 and JP-A-61-42658 are preferred.

Typical examples of polymerized dye-forming couplers are described in US Pat. Nos. 3,451,820 and 4,082.
No. 0,211, No. 4,367,282, No. 4,4
09,320, 4,576,910, British Patent 2,102,137 and European Patent 341,188A.
No.

Examples of couplers in which a coloring dye has an appropriate diffusibility include US Pat. No. 4,366,237, British Patent No. 2,125,570, and European Patent No. 96,570.
Those described in West German Patent (Published) No. 3,234,533 are preferred.

A colored coupler for correcting unnecessary absorption of a coloring dye is described in Research Disclosure No.
No. 17643, section VII-G; VII of 307105-
Section G, U.S. Pat. No. 4,163,670, JP-B-57-
39413, U.S. Pat. Nos. 4,004,929 and 4,138,258, British Patent 1,146,368.
Those described in the above item are preferred. Also, U.S. Pat.
A coupler for correcting unnecessary absorption of a coloring dye by a fluorescent dye released at the time of coupling described in No. 4,181,
It is also preferable to use a coupler having a dye precursor group capable of forming a dye by reacting with a developing agent described in U.S. Pat. No. 4,777,120 as a leaving group.

Compounds which release a photographically useful residue upon coupling can also be preferably used in the present invention.
The DIR coupler releasing the development inhibitor is the RD1 described above.
No. 7643, VII-F and the same No. 307105, VII-
Patent described in section F, JP-A-57-151944,
Preferred are those described in JP-A-57-154234, JP-A-60-184248, JP-A-63-37346, JP-A-63-37350 and U.S. Pat. Nos. 4,248,962 and 4,782,012.

Examples of couplers which release a nucleating agent or a development accelerator imagewise during development are described in British Patent No. 2,099.
7,140,2,131,188, JP-A-59
Preferred are those described in JP-A-157638 and JP-A-59-170840. Also, JP-A-60-107029, JP-A-60-252340, JP-A-1-44940 and JP-A-1-44940.
Also preferred are compounds capable of releasing a fogging agent, a development accelerator, a silver halide solvent and the like by an oxidation-reduction reaction with an oxidized form of a developing agent described in US Pat.

Other compounds that can be used in the light-sensitive material of the present invention include US Pat. No. 4,130,427.
No. 4,283,4.
No. 72, No. 4,338,393, No. 4,310,
No. 618, etc .;
No. 5950 and JP-A-62-24252.
R redox compound releasing couplers, DIR coupler releasing couplers, DIR coupler releasing redox compounds or DIR redox releasing redox compounds, couplers capable of releasing dyes which discolor after release as described in EP 173,302A and EP 313,308A , RD. No. 1
Bleaching accelerator releasing couplers described in US Pat. Nos. 4,5, 1449, 24241, and JP-A-61-201247.
55,477, etc., couplers releasing leuco dyes described in JP-A-63-75747, and couplers releasing fluorescent dyes described in U.S. Pat. No. 4,774,181. .

The coupler used in the present invention can be introduced into a photographic material by various known dispersion methods.

Examples of high boiling point solvents used in the oil-in-water dispersion method are described in, for example, US Pat. No. 2,322,027.

Specific examples of high-boiling organic solvents having a boiling point at normal pressure of 175 ° C. or higher used in the oil-in-water dispersion method include phthalic acid esters (for example, dibutyl phthalate, dicyclohexyl phthalate, di-2-ethylhexyl phthalate). , Decyl phthalate, bis (2,4-di-ter
t-amylphenyl) phthalate, bis (2,4-di-
tert-amylphenyl) isophthalate, bis (1,1-diethylpropyl) phthalate); esters of phosphoric acid or phosphonic acid (eg, triphenyl phosphate, tricresyl phosphate, 2-ethylhexyl diphenyl phosphate, tricyclohexyl phosphate, Tri-2-ethylhexyl phosphate,
Tridodecyl phosphate, tributoxyethyl phosphate, trichloropropyl phosphate, di-2-ethylhexylphenylphosphonate); benzoic acid esters (for example, 2-ethylhexyl benzoate, dodecyl benzoate, 2-ethylhexyl-p-hydroxybenzoate); amides ( For example, N, N-diethyldodecaneamide, N, N-diethyllauramide,
N-tetradecylpyrrolidone); alcohols or phenols (eg, isostearyl alcohol, 2,
4-di-tert-amylphenol); aliphatic carboxylic acid esters (for example, bis (2-ethylhexyl)
Sebacate, dioctyl azelate, glycerol tributyrate, isostearyl lactate, trioctyl citrate); aniline derivatives (eg, N, N-dibutyl-2-butoxy-5-tert-octyl aniline); hydrocarbons (eg, Paraffin, dodecylbenzene, diisopropylnaphthalene). As the auxiliary solvent, for example, the boiling point is about 30 ° C.
As described above, an organic solvent having a temperature of preferably 50 ° C. or more and about 160 ° C. or less can be used, and typical examples include, for example, ethyl acetate, butyl acetate, ethyl propionate, methyl ethyl ketone, cyclohexanone, 2-ethoxyethyl acetate, and dimethylformamide. Can be

The steps and effects of the latex dispersion method and specific examples of the latex for impregnation are described, for example, in US Pat.
9,363, West German Patent Application (OLS) No. 2,541,
274 and 2,541,230.

In the color light-sensitive material of the present invention, phenethyl alcohol or JP-A-63-257747, JP-A-63-257747 may be used.
272248 and JP-A-1-80941, for example, 1,2-benzisothiazolin-3-one, n-butyl-p-hydroxybenzoate, phenol, 4-chloro-3,5-dimethylphenol, −
It is preferable to add various preservatives or fungicides such as phenoxyethanol and 2- (4-thiazolyl) benzimidazole.

The photosensitive material used in the present invention preferably has a film swelling speed T _1/2 of 30 seconds or less, more preferably 20 seconds or less. The film swelling rate T _1/2 here can be measured according to techniques known in the art, for example, by Photographic Science and Engineering (A. Green) et al.
photogr. Sci. Eng. ), Vol. 19, No. 2, 1
Serometer (swelling meter) of the type described on pages 24 to 129
Can be measured by using Incidentally, T _1/2 is 30 ° C. with a color developing solution, 90% of the maximum swollen film thickness reached when treated for 3 minutes 15 seconds and the saturated film thickness, the saturated film thickness 1/2
Is defined as the time to reach.

The film swelling speed T _1/2 can be adjusted by adding a hardening agent to gelatin as a binder or by changing the aging conditions after coating.

The light-sensitive material used in the present invention has a total dry film thickness of 2 μm to 20 μm on the side opposite to the side having the emulsion layer.
It is preferable to provide a hydrophilic colloid layer (referred to as a back layer). In the back layer, for example, the above-described light absorber, filter dye, ultraviolet absorber, antistatic agent, hardener, binder, plasticizer, lubricant, coating aid,
It is preferable to include a surfactant. The swelling ratio of the back layer is preferably from 150 to 500%.

The color photographic light-sensitive material according to the present invention is prepared according to the RD. No. No. 17643, pages 28 to 29;
No. 18716, page 651, left column to right column; 30
The development can be carried out by a usual method described on pages 880 to 881 of No. 7105.

The color developing solution used in the development of the light-sensitive material used in the present invention is preferably an alkaline aqueous solution mainly containing an aromatic primary amine color developing agent. Aminophenol compounds are also useful as the color developing agent, but p-phenylenediamine compounds are preferably used, and typical examples thereof include 3-methyl-4-amino-N, N-diethylaniline and 3-methylaniline. -4-amino-N-ethyl-N-β-hydroxyethylaniline,
3-methyl-4-amino-N-ethyl-N-β-methanesulfonamidoethylaniline, 3-methyl-4-amino-N-ethyl-β-methoxyethylaniline, and their sulfates, hydrochlorides or p -Toluenesulfonate and the like. Among these, a sulfate of 3-methyl-4-amino-N-ethyl-N-β-hydroxyethylaniline is particularly preferred. These compounds can be used in combination of two or more depending on the purpose.

The color developing solution may be, for example, a pH buffer such as an alkali metal carbonate, borate or phosphate,
It generally contains a development inhibitor or antifoggant such as chloride, bromide, iodide, benzimidazoles, benzothiazoles or mercapto compounds. If necessary, various preservatives such as hydroxylamine, diethylhydroxylamine, sulfite, hydrazines such as N, N-biscarboxymethylhydrazine, phenylsemicarbazide, triethanolamine and catecholsulfonic acid; ethylene glycol; Organic solvents such as diethylene glycol; benzyl alcohol, polyethylene glycol, quaternary ammonium salts,
Development accelerators such as amines; dye-forming couplers, competitive couplers, auxiliary developing agents such as 1-phenyl-3-pyrazolidone; viscosity-imparting agents; aminopolycarboxylic acids, aminopolyphosphonic acids, alkylphosphonic acids, phosphonos Various chelating agents such as carboxylic acids can be used. Examples of the chelating agent include ethylenediaminetetraacetic acid, nitriletriacetic acid, diethylenetriaminepentaacetic acid, cyclohexanediaminetetraacetic acid, hydroxyethyliminodiacetic acid, 1-hydroxyethylidene-1,1-
Representative examples include diphosphonic acid, nitrilo-N, N, N-trimethylenephosphonic acid, ethylenediamine-N, N, N, N-tetramethylenephosphonic acid, ethylenediamine-di (o-hydroxyphenylacetic acid) and salts thereof. be able to.

When the reversal processing is performed, color development is usually performed after black-and-white development. The black-and-white developer includes, for example, dihydroxybenzenes such as hydroquinone, for example, 3-pyrazolidones such as 1-phenyl-3-pyrazolidone, or N-methyl-
Known black and white developing agents of aminophenols such as p-aminophenol can be used alone or in combination. The p of these color developing solutions and black-and-white developing solutions
H is generally 9 to 12. The replenishing amount of these developing solutions depends on the color photographic light-sensitive material to be processed, but is generally 3 liters or less per square meter of the light-sensitive material, and is 500 ml or less by reducing the bromide ion concentration in the replenishing solution. You can also When the replenishment amount is reduced, it is preferable to prevent the evaporation and air oxidation of the processing liquid by reducing the contact area of the processing liquid with air.

The contact area between the photographic processing solution and air in the processing tank can be represented by the aperture ratio defined below. That is, aperture ratio = [contact area between treatment liquid and air (cm ² )] ÷ [capacity of treatment liquid (cm ³ )] The above aperture ratio is preferably 0.1 or less, more preferably 0.1% or less. 001 to 0.05. As a method of reducing the aperture ratio in this way, in addition to a method of providing a shield such as a floating lid on the photographic processing liquid surface of the processing tank, a movable lid described in JP-A-1-82033 is used. And a slit developing method described in JP-A-63-216050. The reduction of the aperture ratio is preferably applied not only to both the color development and black-and-white development steps but also to the following various steps, for example, all the steps of bleaching, bleach-fixing, fixing, washing and stabilization. Further, by using means for suppressing the accumulation of bromide ions in the developer, the replenishing amount can be reduced.

The time for the color development processing is usually set between 2 and 5 minutes, but the processing time can be further shortened by using a high temperature and high pH and using a high concentration of the color developing agent. .

The photographic emulsion layer after color development is usually subjected to bleaching. The bleaching process may be performed simultaneously with the fixing process (bleach-fixing process), or may be performed individually. In order to further speed up the processing, a processing method of performing bleach-fixing after bleaching may be used. Furthermore, processing in two continuous bleach-fix baths, fixing before bleach-fix processing,
Alternatively, bleaching after bleach-fixing can be arbitrarily performed according to the purpose. As the bleaching agent, for example, compounds of a polyvalent metal such as iron (III), peracids (particularly, sodium persulfate is suitable for a color negative film for movies), quinones, and nitro compounds are used. Representative bleaching agents include organic complex salts of iron (III), for example, ethylenediaminetetraacetic acid,
Complex salts with aminopolycarboxylic acids such as diethylenetriaminepentaacetic acid, cyclohexanediaminetetraacetic acid, methyliminodiacetic acid, 1,3-diaminopropanetetraacetic acid, glycol etherdiaminetetraacetic acid, or, for example, citric acid, tartaric acid, malic acid Can be used. Of these, iron (III) aminopolycarboxylate complexes, including iron (III) complex salts of ethylenediaminetetraacetate and 1,3-diaminopropanetetraacetate,
It is preferable from the viewpoint of rapid processing and prevention of environmental pollution. further,
The aminoboric acid iron (III) complex salt is particularly useful in a bleaching solution and a bleach-fixing solution. The pH of the bleaching solution or the bleach-fixing solution using these aminopolycarboxylic acid iron (III) complex salts is usually from 4.0 to 8, but the processing can be carried out at a lower pH in order to speed up the processing.

In the bleaching solution, the bleach-fixing solution and the prebath thereof, a bleaching accelerator can be used if necessary.
Specific examples of useful bleach accelerators are described in the following specification: for example, U.S. Pat. No. 3,893,858, West German Patent 1,290,812, and 2,059,988.
JP-A-53-32736 and JP-A-53-57831.
No. 53-37418, No. 53-72623, No. 53-95630, No. 53-95731, No. 53-
No. 104232, No. 53-124424, No. 53-1
No. 41623, No. 53-18426, Research Disclosure No. 17129 (July 1978)
Compounds having a mercapto group or a disulfide group described in JP-A-51-140129; thiazolidine derivatives described in JP-A-51-140129; Japanese Patent Publication No. 45-8506;
Nos. 832 and 53-32735, U.S. Pat.
No. 6,561, the thiourea derivative described in West German Patent 1,
127,715; JP-A-58-16235; West German Patent Nos. 966,410 and 2,741
8,430; polyamine compounds described in JP-B-45-8836; and JP-A-49-40943 and JP-A-49-59644.
Nos. 53-94927, 54-35727, 55
Compounds described in -26506 and 58-163940; bromide ions and the like can be used. Among them, compounds having a mercapto group or a disulfide group are preferred from the viewpoint of a large accelerating effect, and in particular, US Pat.
No. 58, West German Patent No. 1,290,812,
Compounds described in -95630 are preferred. Further, the compounds described in U.S. Pat. No. 4,552,884 are also preferable. These bleaching accelerators may be added to the light-sensitive material. When bleach-fixing a color photographic material for photography, these bleaching accelerators are particularly effective.

The bleaching solution and the bleach-fixing solution preferably contain an organic acid in addition to the above compounds for the purpose of preventing bleaching stain. Particularly preferred organic acids are compounds having an acid dissociation constant (pKa) of 2 to 5, and specific examples include acetic acid, propionic acid, and hydroxyacetic acid.

Examples of the fixing agent used in the fixing solution or the bleach-fixing solution include thiosulfates, thiocyanates, thioether compounds, thioureas, and large amounts of iodides. Of these, use of thiosulfates is common, and in particular, ammonium thiosulfate can be used most widely. Also, thiosulfate and, for example, thiocyanate,
A combination use of a thioether compound and thiourea is also preferable. Examples of the preservatives of the fixing solution and the bleach-fixing solution include sulfites, bisulfites, carbonyl bisulfite adducts and European Patent No. 2
Sulfinic acid compounds described in No. 94,769A are preferred. Further, it is preferable to add various aminopolycarboxylic acids or organic phosphonic acids to the fixing solution or the bleach-fixing solution for the purpose of stabilizing the solution.

In the present invention, the fixing solution or the bleach-fixing solution contains a compound having a pKa of 6.0 to 9.0, preferably imidazole, 1-methylimidazole, 1-ethylimidazole or 2-methyl for adjusting pH. It is preferable to add imidazoles such as imidazole in an amount of 0.1 to 10 mol / l.

The total time of the desilvering step is preferably as short as possible, as long as the desilvering failure does not occur. Preferred time is 1 minute to 3
Minutes, more preferably 1 to 2 minutes. Further, the processing temperature is 25 ° C to 50 ° C, preferably 35 ° C to 45 ° C.
In a preferable temperature range, the desilvering speed is improved, and generation of stain after processing is effectively prevented.

In the desilvering step, it is preferable that the stirring is strengthened as much as possible. As a specific method for enhancing the stirring, a method described in JP-A-62-183460, in which a jet of a processing solution is made to impinge on the emulsion surface of a photosensitive material, or a method described in JP-A-62-183461, using a rotating means. There is a method to improve the effect. In addition, the photosensitive material is moved while the wiper blade provided in the solution is in contact with the emulsion surface, and the turbulence of the emulsion surface is used to improve the stirring effect, and the circulation flow rate of the entire processing solution is increased. There is a method to make it. Such an agitation improving means is effective for any of a bleaching solution, a bleach-fixing solution and a fixing solution. It is considered that the improvement of the stirring speeds up the supply of the bleaching agent and the fixing agent into the emulsion film, thereby increasing the desilvering speed. The means for improving the stirring is more effective when a bleaching accelerator is used, and can significantly increase the accelerating effect or eliminate the fixing inhibition effect by the bleaching accelerator.

The automatic developing machine used for developing the light-sensitive material used in the present invention is described in JP-A-60-191257 and JP-A-60-191257.
It is preferable to have the photosensitive material conveying means described in JP-A Nos. 0-191258 and 60-191259. As described in the above-mentioned JP-A-60-191257, such a conveying means can significantly reduce the carry-in of the processing solution from the pre-bath to the post-bath, and is highly effective in preventing the performance of the processing solution from deteriorating. Such an effect is particularly effective in shortening the processing time in each step and reducing the replenishing amount of the processing solution.

The silver halide color photographic light-sensitive material according to the present invention generally undergoes a washing and / or stabilizing step after desilvering. The amount of water to be washed in the washing step depends on the characteristics of the photosensitive material (for example, depending on the material used such as a coupler),
It can be set in a wide range according to the application, and further, for example, the washing water temperature, the number of washing tanks (the number of stages), a replenishment method such as countercurrent or forward flow, and other various conditions. Among them, the relationship between the number of washing tanks and the amount of water in the multi-stage countercurrent method is described in Journal.
of the Society of Motion
Picture and Television E
nginers 64, p. 248-253 (1
955) may be obtained.

According to the multi-stage counter-current method described in the above document,
Although the amount of washing water can be greatly reduced, there is a problem that bacteria increase due to an increase in the residence time of water in the tank, and the generated suspended matter adheres to the photosensitive material.
In the processing of the color light-sensitive material of the present invention, the method of reducing calcium ions and magnesium ions described in JP-A-62-288838 can be used very effectively as a solution to such a problem. Further, described in JP-A-57-8542, for example, isothiazolone compounds and thiabendazoles, chlorinated fungicides such as chlorinated sodium isocyanurate, and others, for example,
Like benzotriazole, Hiroshi Horiguchi, "The Chemistry of Bactericidal and Antifungal Agents" (1986) Sankyo Publishing, Sanitary Technology Association, "Microbial Sterilization, Sterilization and Antifungal Technology" (1982) Industrial Technology Association,
"Encyclopedia of Bactericidal and Fungicides" edited by Japan Society of Bactericidal and Fungicide (1986)
Can be used.

The pH of the washing water in the processing of the photosensitive material according to the present invention is 4 to 9, preferably 5 to 8. The washing temperature and washing time can also be variously set depending on, for example, the characteristics of the photosensitive material and the intended use.
A range of 0 seconds to 10 minutes, preferably 30 seconds to 5 minutes at 25 to 40 ° C is selected. Further, the light-sensitive material of the present invention can be processed directly with a stabilizing solution instead of the above-mentioned water washing. In such a stabilization process, Japanese Patent Application Laid-Open No. 57-8 / 1982
No. 543, No. 58-14834, No. 60-22034
All known methods described in No. 5 can be used.

In some cases, a stabilization process may be performed after the water washing process. An example thereof is a stabilizing bath containing a dye stabilizer and a surfactant, which is used as a final bath of a color light-sensitive material for photography. Examples of the dye stabilizer include aldehydes such as formalin and glutaraldehyde, N-methylol compounds, hexamethylenetetramine and aldehyde sulfite adducts. Various chelating agents and fungicides can also be added to this stabilizing bath.

The overflow solution accompanying the washing and / or replenishment of the stabilizing solution can be reused in another step such as a desilvering step.

For example, in a process using an automatic developing machine,
When each of the above-mentioned treatment liquids is concentrated by evaporation, it is preferable to add water to correct the concentration.

In the silver halide color photographic material according to the present invention, a color developing agent may be incorporated for the purpose of simplifying and speeding up the processing. In order to incorporate them, it is preferable to use various precursors of a color developing agent. For example, indoaniline compounds described in U.S. Pat. No. 3,342,597, for example, U.S. Pat. No. 3,342,599, Research Disclosure No. 14, 850 and the same No. Schiff base type compounds described in Nos. 15,159, and N
o. 13,924, a metal salt complex described in U.S. Pat. No. 3,719,492;
The urethane compounds described in 3-135628 can be mentioned.

The silver halide color light-sensitive material according to the present invention may optionally contain various 1-phenyl-3-pyrazolidones for the purpose of accelerating color development. Typical compounds are described, for example, in JP-A-56-6433.
No. 9, No. 57-144547 and No. 58-115
No. 438.

Various processing solutions in the present invention may be used at a temperature of 10 ° C. to 5
Used at 0 ° C. Usually, a temperature of 33 ° C. to 38 ° C. is standard, but a higher temperature promotes the processing and shortens the processing time, and a lower temperature achieves an improvement in the image quality and an improvement in the stability of the processing solution. be able to.

The standard of the photographic film cartridge may be IX240 type or 135 type.

[0139]

The present invention will be specifically described below with reference to examples. However, the present invention is not limited to these examples.

Example 1 (1) Production of Film Unit 1 with Lens (Invention) In FIG. 2 showing the appearance of the film unit 11 with a lens, the film unit 11 with a lens has a finder objective window on the front. 12, the shooting window 14, which exposes the shooting lens 13,
A strobe light emission window 16 is provided. It is preferable to use a lens having an F-number brighter than 7, that is, a lens having an F-number ≦ 7. In this embodiment, an F number = 6.7 is used. Strobe light emission window
Below the 16, a strobe charging switch 17 is slidably provided. When the flash charging switch 17 is slid, flash charging is started.

A solar cell 18 is mounted beside the strobe charging switch 17. This solar cell 18 is a photometric unit for adjusting the aperture according to the amount of light of the subject,
The solar cell 18 connected to an analog meter (57 described later) built in the main body is, for example, of an amorphous silicon type, and generates an electromotive force according to the amount of received light. Drive the meter.

The light receiving surface of the solar cell 18 is arranged from the photographing lens 13 to the stroboscopic light emitting window 16 and from the center line of the stroboscopic light emitting window 16 (shown by a dashed line in the drawing) to the photographing lens 13. This allows the film unit with lens 11
This prevents the finger holding the main body from blocking the light receiving surface of the solar cell 18. Also, by arranging this light receiving surface on the front of the film unit 11 with lens,
Since the light can be measured in the same direction as the direction in which the subject light enters the photographing lens 13, the quantity of the subject light is accurately measured.

A shutter button 21, a film counter window 22, and a charge completion display window 23 are provided on the upper surface of the film unit 11 with a lens.
And a finder eyepiece window (see reference numeral 26 in FIG. 3).

As shown in FIG. 3, the film unit with lens 11 has a main body base 32 provided with an exposure unit 29 and a strobe device 31 in the center, and a front cover 33 which covers the front and rear thereof.
And a rear cover 34, a unit body, and a cartridge 36 and a photo film 37 drawn from the cartridge 36 and formed into a roll. It is preferable to use a photographic film 37 having an ISO sensitivity of 1000 or more. In this embodiment, the one having an ISO sensitivity of 1600 is used.

The cartridge 36 and the photographic film 37 are preliminarily incorporated into the cartridge storage chamber 32a and the film storage chamber 32b formed in the main body 32 at the time of manufacturing the lens-fitted film unit 11, respectively. Below the rear cover 34,
Bottom lids 34a and 34b are formed integrally to cover the bottom openings of the cartridge storage chamber 32a and the film storage chamber 32b in a light-tight manner. The bottom cover 34a is opened when the cartridge 36 in which the photographed photo film 37 has been taken in is taken out.

The winding knob 24 is connected to the cartridge storage chamber 32.
The hoisting shaft, which is attached to the upper part of a and is integrally formed on the lower surface thereof, engages with the spool of the cartridge 36. By rotating the winding knob 24 for each photographing, the photographed film 37 having been photographed is wound into the cartridge 36 one frame at a time. In conjunction with the winding of one frame of the film, the shutter mechanism incorporated in the exposure unit 29 is charged for the next photographing, and when the feeding of one frame of film is completed, the winding knob is operated by the lock lever incorporated in the exposure unit 29. The rotation of 24 is locked.

The strobe device 31 includes a main condenser 39,
A circuit board 43 on which circuit components such as a synchro switch 41, a strobe light emission control switch 42, and a step-up coil are mounted; The light emitting section 46 is exposed to the outside through the strobe light emitting window 16. A circuit pattern is printed on the circuit board 43, and various circuit elements are attached to the front of the plane circuit board 43 on which a strobe circuit is formed.
In addition to the strobe light emission control switch 42, the charging switch contact piece 44
And a support plate 48 for supporting the strobe switch 17 in front of the
Is attached.

The charge switch contact piece 44 is a main capacitor
Strobe switch to start charging to 39
17 slides turn on / off. The synchro switch 41 sends a trigger signal to the strobe circuit to emit strobe light, and operates in synchronization with the pressing of the shutter button 21. The flash emission control switch 42 is
This is for controlling on / off of strobe light emission according to the amount of light of the subject, and is switched in conjunction with the cam plate 51.

The exposure section 29 has a dark box base 52 projecting forward in the shape of a rectangular tube as a base, and a finder mechanism in addition to a shutter mechanism and a winding mechanism.
An exposure frame is formed on the back surface of the dark box base 52, and limits the exposure range for one frame on the front surface of the photographic film 37 sent to the photographing position.

As shown in FIG. 4, a shutter opening 52a is formed on the front surface of the dark box base 52, and in front of the shutter opening 52a,
A shutter blade 53, a pair of aperture plates 54 and 55, and a shutter cover 56 that covers these are attached. The shutter cover 56 has a built-in shooting lens 13 and a dark box base.
On the upper surface of 52, each diaphragm plate 54,
An analog meter 57 for adjusting the amount of movement of 55 is attached. The analog meter 57 is a well-known ammeter composed of a coil and a magnet.
The swing amount of a changes. The analog meter 57
8 connected to receive current supply. When the cam plate 51 is engaged with the needle 57a, the amount of movement is determined according to the amount of deflection of the needle 57a.

The shutter blade 53 is of a well-known kicking type, and includes a blade portion 53a and a mounting portion 53b extending above the blade portion 53a. The mounting portion 53b is engaged with a pin formed on the front surface of the dark box base 52, and the pin is used as a center axis to freely rotate between a closed position for closing the shutter opening 52a and an open position for opening the opening 52a. Mounting part 53b to be mounted and dark box base 52
Between the shutter blade 53 and the shutter blade 53
Is biased by the spring 58 toward the closed position.

When the shirt button 21 is depressed, the kicking section 21a extending below the shutter button 21 suppresses the release lever 59. When the release lever 59 is suppressed, the shutter charge is released, and the kick lever 60 is attached to the mounting portion 53b.
Kicks off his head. As a result, the blade 53a rotates,
The shutter opening 52a is opened and closed. In addition, in the mounting portion 53b,
The suppression unit 53c is provided. The suppression unit 53c is for emitting a strobe light in conjunction with opening and closing of the shutter. When the shutter blade 53 reaches the fully open position, the sync switch is set.
Press 41 to turn it on.

The diaphragm plates 54 and 55 are provided with substantially semicircular notches below the diaphragm plates 55 and 55, and are provided so as to face each other. The aperture plates 54, 55 have holes 54a, 55a formed respectively.
Is engaged with a pin provided on the dark box base 52, and is rotatably mounted. By this rotation, the diaphragm plates 54 and 55 overlap each other, so that the notch forms a diaphragm opening, and the size of the diaphragm opening is adjusted according to the degree of overlap.

The aperture plates 54 and 55 are provided with long holes 54b and 55b, respectively. The aperture plates 54 and 55 are
When the operating pin 58 provided on the cam plate 51 is pushed through b and 55b, it is interlocked with the cam plate 51. Further, the restriction plate 54c is provided on the aperture plate 54. The restricting pin 54c is for restricting the rotation of the diaphragm plate 55, and prevents the diaphragm opening from being completely closed due to an error in engagement between the diaphragm plates 54 and 55.

The cam plate 51 is for rotating the aperture plates 54 and 55. The material is made of an elastic thin plastic or the like. The cam plate 51 is rotatably supported by engaging the hole 51a with a pin 61 provided on the main body base 32. On the upper surface of the cam plate 51, a cam surface 51b is formed in a stepwise manner. When the cam plate 51 rotates clockwise as viewed from the front, the cam surface 51b contacts the needle 57a. The cam surface 51b is formed in two steps, a high surface and a low surface, and the amount of movement of the cam plate 51 changes in two stages when the needle 57a comes into contact with any of these surfaces.

[0156] Above the needle 57a, a regulating surface 62 is provided integrally with the finder frame so as to face the cam surface 51b. The regulating surface 62 regulates the rotation of the cam plate 51 which rotates while pressing the cam surface 51b against the needle 57a. Further, the regulating surface 62 presses the needle 57a pressed against the cam surface 51b with the cam surface 51b.
By pinching together with b, the position of the needle 57a is fixed.

The cam surface 51b is formed lower on the left side when viewed from the front. Therefore, when the swing amount of the needle 47a is small, the rotation amount of the cam plate 51 is small, and when the swing amount of the needle 47a is large, the rotation amount of the cam plate 51 is large. Cam plate 51
The amount of movement of the operating pin 58 also changes in accordance with the change in the amount of rotation of. Thereby, the size of the aperture opening is adjusted according to the amount of light of the subject.

The rotation of the cam plate 51 is performed in conjunction with the shutter button 21. For this reason, an interlocking lever 63 is formed at one end of the cam plate 51 and extends toward the kicking portion 21a. The interlocking lever 63 is arranged so as to engage with the protrusion 21b provided on the kicking section 21a. When the shutter button 21 is depressed, the interlocking lever 63 is
Is pushed up, and the cam plate 51 rotates clockwise. As described above, the aperture plates 54 and 55 operate with the force of pressing the shutter button 21. Therefore, a power supply for operating the diaphragm plates 54 and 55 is not required.

In FIG. 5 showing an example of a strobe circuit, in the strobe circuit, when the charging switch contact piece 44 is turned on, the oscillating transistor 66 conducts and the boost coil 67 operates. The main capacitor 39 and the trigger capacitor 68 are charged by the secondary current obtained from the boost coil 67, and when the main capacitor 39 reaches a specified charge level, the neon tube 69 is turned on. Synchro switch by opening shutter blade 53
When 41 is turned on, a current flows through the primary side of the trigger coil 71 due to the discharge of the trigger capacitor 68, and a high voltage is generated at the trigger electrode 72 connected to the secondary side. As a result, the electric charge stored in the main capacitor 39 is transferred to the strobe discharge tube 73.
Through the device and emit a strobe light.

The strobe light emission control switch 42 is provided on a current supply path from the trigger capacitor 68 to the trigger coil 71. When the strobe light emission control switch 42 is on, a current is supplied to the trigger coil 71 to emit strobe light. On the other hand, when the flash light emission control switch 42 is turned off, even if the synchro switch 41 is turned on, the current portion is not supplied to the trigger coil 71, so that the flash light emission is prohibited.

The operation of the above configuration will be described below with reference to FIG. First, as shown in FIG.
When the subject light amount is small, the amount of movement of the needle 57a is small, and the needle 57a is at a position facing the high surface of the cam surface 57b.
In this state, when the shutter button 21 is manually pushed,
21b pushes up the link lever 63. Thereby, the cam plate 5
1 rotates counterclockwise. When the cam plate 51 rotates, the operating pin 58 moves upward, and the diaphragm plates 54 and 55 rotate in a direction approaching each other to form a diaphragm opening.

The rotation of the cam plate 51 stops when the cam surface 51b contacts the needle 57a and presses the needle 57a against the regulating surface 62. Since the amount of rotation of the cam plate 51 is small, the aperture opening has a large diameter.

At this time, the needle 57a is sandwiched between the cam surface 51b and the regulating surface 62, and is fixed at that position. For this reason, the position of the hand 57a does not change even if the subject light amount changes until the shutter button 21 is fully pressed and the shutter operates. Therefore, the diameter of the aperture opening does not change during the shutter operation.

In this state, when the shutter button 21 is further depressed, the interlocking lever 63 is further suppressed by the projection 21b and elastically deforms, as shown by the two-dot chain line in FIG. This elastic deformation allows the shutter button 21 to be fully pressed. When the shutter button 21 is fully pressed, the release lever 59 is released by the suppression from the kicking section 21a, and the shutter blade 53 opens and closes.

When the shutter blade 53 opens and closes, the synchro switch 41 is turned on, and if the main capacitor 39 is charged, flash light emission is performed. Shooting lens
The subject light incident from 13 passes through the aperture and forms an image on the photographic film 37. Since the aperture opening has a large diameter, an appropriate exposure amount can be obtained. Shutter button
When the user releases his / her hand, the kicking section 21a separates from the interlocking lever 63, and the cam plate 51 rotates counterclockwise by its own weight and returns to the initial position.

Next, when the amount of light of the subject is large, FIG.
As shown in (B), the needle 57a has a large deflection amount,
It comes to a position facing the lower surface of the cam surface 51b. In this state, when the shutter button 21 is manually pushed, the protrusion 21b pushes up the interlocking lever 63, and the cam plate 51 rotates until the cam surface 51b presses the needle 57a against the regulating surface 62. At this time, the cam plate 51
Is large, so the movement amount of the operating pin 58 also increases,
The amount of rotation of the diaphragm plates 54 and 55 also increases. For this reason, the aperture is adjusted so as to have a small diameter.

In this state, when the shutter button 21 is further depressed, the interlocking lever 63 is elastically deformed as shown by a two-dot chain line in the figure, and the shutter button 21 can be fully depressed. When the shutter button 21 is fully pressed, the shutter blade 53
When the shutter opens and closes, the synchro switch 41 is turned on.The subject light incident from the photographing lens 13 passes through the aperture opening,
An image is formed on the photo film 37. Since the aperture is adjusted to a small diameter, an appropriate exposure can be obtained.

In the above example, an example in which a solar cell is used as the photometric means has been described. However, a photoconductive element may be used instead of a solar cell. As the photoconductive element, for example, CdS or a photodiode is used.

In the above example, the cam plates have different heights.
In the above example, two cam surfaces are formed and the size of the aperture is adjusted in two steps.However, the number of steps is not limited to two. You may make it adjustable. Further, the cam surface may be formed not in a step shape but in a slope, and the size of the aperture may be adjusted steplessly.

[0170] Also, an example in which two aperture plates are overlapped to form an aperture is described as an aperture plate. In addition, for example, an aperture plate in which a plurality of different aperture openings are formed may be used. The aperture value may be adjusted by moving the aperture plate.

The standard of the photographic film cartridge may be IX240 type or 135 type.

Table 2 shows the specifications of the film with lens 1.

Specifications of the film unit with lens 1

[0174]

[Table 2]

The above specifications are merely examples, and any specifications satisfying the requirements of the present invention can be adopted.

The film unit with lens 1
Table 3 shows the luminance range that can be photographed by.

[0177]

[Table 3]

The photographic film 37 of the lens-fitted film unit 1 contains the following silver halide emulsion on the side opposite to the back layer of the support which has been undercoated by the following method.
Sample 101 (total dry film thickness: 24.5 μm), which is a multilayer color light-sensitive material in which each layer having the following composition was applied in multiple layers, was used.

1) Support The support used in this example was prepared by the following method.

100 parts by weight of polyethylene-2,6-naphthalate polymer and Tinuvin as an ultraviolet absorber
P. 326 (manufactured by Ciba-Geigy) and 2 parts by weight, and then melted at 300 ° C.
It was extruded from the die, stretched 3.3 times at 140 ° C., stretched 3.3 times at 130 ° C., and heat-set at 250 ° C. for 6 seconds to form a 90 μm-thick PEN (polyethylene). A naphthalate) film was obtained. Note that this P
The EN film has a blue dye, a magenta dye and a yellow dye (disclosed in Japanese Patent Publication No. 94-6023).
-1, I-4, I-6, I-24, I-26, I-2
7, II-5) was added in an appropriate amount. Furthermore, diameter 20cm
And a heat history of 110 ° C. for 48 hours was given to obtain a support that is less likely to have a curl.

2) Coating of Undercoat Layer The support was provided on both sides with corona discharge treatment and UV discharge treatment.
After the glow discharge treatment,
0.1g / m of latin², Sodium a-sulfodi-2-
Ethylhexyl succinate 0.01 g / m², Salich
0.04 g / m of phosphoric acid², P-chlorophenol 0.2
g / m², (CH₂= CHSO₂CH ₂CH₂NHC
O)₂CH₂0.012 g / m², Polyamide-epic
Lolhydrin polycondensate 0.02 g / m²Apply undercoat liquid
Cloth (10cc / m², Bar coater), undercoat layer
Was provided on the high temperature side during stretching. Drying is performed at 115 ° C for 6 minutes.
(All rollers and conveyors in the drying zone are 115
° C).

3) Coating of Back Layer An antistatic layer, a magnetic recording layer and a slip layer having the following composition were coated as a back layer on one surface of the support after the undercoat.

3-1) Coating of antistatic layer Tin oxide-antimony oxide composite having an average particle diameter of 0.005 μm has a specific resistance of 5 Ω · cm, a dispersion of fine particle powder (secondary aggregated particle diameter of about 0.08 μm). ) and 0.2 g / ^{m 2,} gelatin _{^{0.05g / m 2, (CH 2}} = CHSO 2 CH 2 CH
₂ NHCO) ₂ CH ₂ 0.02 g / m ² , poly (degree of polymerization 10) oxyethylene-p-nonylphenol
005 g / m ² and resorcinol.

3-2) Coating of Magnetic Recording Layer Cobalt-γ-iron oxide coated with 3-poly (degree of polymerization 15) oxyethylene-propyloxytrimethoxysilane (15% by weight) (specific surface area: 43 m ² / G, major axis 0.14 μm, single axis 0.03 μm, saturation magnetization 89 emu
/ G, Fe ^{+ 2} / Fe ^{+ 3} = 6/94, surface treated with aluminum oxide silicon oxide at 2% by weight of iron oxide).
06 g / m ² to 1.2 g / m ² of diacetyl cellulose
² (dispersion of iron oxide was carried out by an open kneader and a sand mill), and C ₂ H ₅ C (CH ₂ OCON
The _{H-C 6 H 3 (CH} 3) NCO) 3 0.3g / m 2,
Acetone, methyl ethyl ketone, and cyclohexanone were used as a solvent and applied with a bar coater.
m of the magnetic recording layer was obtained. Silica particles (0.3 μm) and 3-poly (degree of polymerization 15) oxyethylene-propyloxytrimethoxysilane (15% by weight) as a matting agent
Abrasive aluminum oxide (0.15μm) coated with
Was added so as to be 10 mg / m ² . Drying was performed at 115 ° C for 6 minutes (all rollers and conveyors in the drying zone were at 115 ° C). X- light increase of the color density of D ^B of the magnetic recording layer in the (blue filter) was about 0.
1, and the saturation magnetization moment of the magnetic recording layer is 4.2 em
u / g, coercive force 7.3 × 10 ⁴ A / m, squareness ratio 65%
Met.

3-3) Preparation of Sliding Layer Diacetyl cellulose (25 mg / m²), C₆H₁₃
CH (OH) C₁₀H ₂₀COOC₄₀H₈₁(Compound
a, 6mg / m²) / C₅₀H₁₀₁O (CH ₂CH₂
O)₁₆H (compound b, 9 mg / m²) Apply the mixture
Was. This mixture is made of xylene / propylene mono
Melted at 105 ° C in methyl ether (1/1)
Of propylene monomethyl ether (10 times)
After dispersion, a dispersion (average particle size of 0.
01 μm). Silica as matting agent
Particles (0.3 μm) and 3-poly of abrasive (degree of polymerization 15)
Oxyethylene propyloxy trimethoxysilane (1
5% by weight) coated aluminum oxide (0.15 μm)
15mg / m each²Was added so that Drying
The test was performed at 115 ° C for 6 minutes (using rollers and transporting equipment in the drying zone).
All settings are 115 ° C). The sliding layer has a dynamic friction coefficient of 0.06.
(5mmφ stainless steel hard ball, load 100g, speed
6cm / min), coefficient of static friction 0.07 (clip method),
The coefficient of kinetic friction between the emulsion surface and the sliding layer described later was also excellent at 0.12.
Characteristics.

The silver halide emulsion Em- was prepared in the following manner.
Em-Q was prepared from A.

(Production method of Em-A) 42.2 L of an aqueous solution containing 21.7 g of low molecular weight gelatin having a molecular weight of 15000 and 25.7 g of KBr was kept at 35 ° C. and stirred vigorously. AgN
1583 ml of an aqueous solution containing 216.7 g of O ₃ and KBr
121.5 g, low molecular weight gelatin 4 having a molecular weight of 15,000
1583 ml of an aqueous solution containing 2.7 g was added over 1 minute by the double jet method. Immediately after the addition, KBr4
8.8 g were added. Thereafter, the temperature was raised to 70 ° C. and ripened. After ripening, molecular weight of 100 succinated with succinic acid
Then, 723 g of gelatin of 000 and 69.2 g of KBr were added, and 15947 ml of an aqueous solution of AgNO ₃ and an aqueous solution of KBr were added by a double jet method over 10 minutes while accelerating the flow so that the final flow was 1.6 times the initial flow. At this time, the silver potential was kept at -50 mV with respect to the saturated calomel electrode. After washing with water, gelatin was added, pH 5.7, pAg
8.8, weight 151.8 in silver equivalent per kg of emulsion
g and gelatin weight were adjusted to 74.1 g to prepare a seed emulsion.
1311 ml of an aqueous solution containing 36 g of succinated gelatin and 1.7 g of KBr was maintained at 75 ° C. and stirred vigorously. After adding 14.9 g of the aforementioned seed emulsion, 0.3 g of modified silicone oil (L7602 manufactured by Nippon Unicar Co., Ltd.) was added.
Was added. After adding H ₂ SO ₄ to adjust the pH to 5.5, 67.6 ml of an aqueous solution containing 7.0 g of AgNO ₃ and K were added.
The Br aqueous solution was added by a double jet method over a period of 6 minutes while the flow rate was accelerated so that the final flow rate was 3.1 times the initial flow rate. At this time, the silver potential was set to -30 with respect to the saturated calomel electrode.
mV. Sodium benzenethiosulfonate, 2
mg and thiourea dioxide 2.5 mg, and then AgN
An aqueous solution containing 115.6 g of O ₃ , 328 ml, and an aqueous KBr solution were subjected to a double jet method so that the final flow rate was 2.7 at the initial flow rate.
The flow rate was accelerated so as to double the amount and added over 66 minutes.
At this time, an AgI fine grain emulsion having a grain size of 0.037 μm was simultaneously added at an accelerated flow rate such that the silver iodide content became 20 mol%, and the silver potential was kept at −40 mV with respect to the saturated calomel electrode. 121.3 ml of an aqueous solution containing 55.6 g of AgNO ₃ and an aqueous KBr solution were added over 28 minutes by a double jet method. At this time, the silver potential was kept at +0 mV with respect to the saturated calomel electrode. After the temperature was raised to 82 ° C. and KBr was added to adjust the silver potential to −70 mV, the above AgI fine grain emulsion was converted to 6.3 in terms of KI weight.
3 g were added. Immediately after the addition is completed, AgNO ₃ 66.
206.2 ml of an aqueous solution containing 4 g were added over 16 minutes. During the initial 5 minutes of the addition, the silver potential was lowered to -7 with an aqueous KBr solution.
It was kept at 0 mV. After washing with water, add gelatin and add 40 ° C
And adjusted to pH 5.8 and pAg 8.7. After adding compounds 11 and 12, the temperature was raised to 60 ° C. Sensitizing dye 1
After addition of 1 and 12, potassium thiocyanate,
Chloroauric acid, sodium thiosulfate, N, N-dimethylselenourea and Compound 15 were added for optimal chemical sensitization. At the end of the chemical sensitization, Compound 13 and Compound 14 were added. Here, optimal chemical sensitization means that the sensitizing dye and each compound are selected from the added amount range of 10 ^-1 to 10 ^-8 mol per mol of silver halide.

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(Preparation method of Em-B) In the preparation of Em-A, the amount of seed emulsion, the addition flow rate, etc. were changed to obtain Em-B.
Was prepared.

(Production method of Em-C) Low molecular weight gelatin
1192 ml of an aqueous solution containing 0.6 g of KBr and 0.9 g of KBr
Maintained at 5 ° C. and stirred vigorously. AgNO₃1.09 g
Water solution containing 37.5 ml of aqueous solution and 0.85 g of KBr
Add 37.5 ml of liquid for 40 seconds by double jet method
Added. After adding 1.05 g of KBr, the temperature was raised to 75 ° C.
And matured. After aging, the amino group is trimmed with trimellitic acid.
Chemically modified 100,000 molecular weight trimellitized zera
25 g of tin was added and the pH was adjusted to 7. Dioxide
4.5 mg of urea was added. AgNO₃Aqueous solution 116
ml and KBr aqueous solution have the first final flow rate by the double jet method.
The flow rate was increased to 2.5 times the initial flow rate and added.
At this time, the silver potential was set to -25 mV with respect to the saturated calomel electrode.
Kept. AgNO₃Aqueous solution 44 containing 110.2 g
Final flow of 0.6ml and KBr aqueous solution by double jet method
The flow rate is accelerated so that the amount becomes 4.1 times the initial flow rate, and 25
Added over minutes. At this time, it is used in the preparation of Em-A.
AgI fine grain emulsion having a silver iodide content of 10.8 mol
% At the same time, accelerated flow rate and added, and silver potential
Was kept at 0 mV with respect to the saturated calomel electrode. AgNO
₃96.5 ml of aqueous solution containing 24.1 g and KBr aqueous solution
Was added by the double jet method over 3 minutes. At this time,
The silver potential was kept at 0 mV. Sodium ethylthiosulfonate
, 36 mg, and then cooled to 55 ° C.
An aqueous solution was added to adjust the silver potential to -90 mV. Mentioned earlier
9.5 g of the obtained AgI fine grain emulsion was added in terms of KI weight.
Was. Immediately after the addition is completed, AgNO ₃Aqueous solution containing 57g
228 ml were added over 10 minutes. At this time,
With an aqueous KBr solution so that the potential at the end of the test is +10 mV.
It was adjusted. It was washed with water and chemically sensitized almost in the same manner as Em-A.

(Production method of Em-D) 35 μmol / g
100000 molecular weight phthalate containing 1 methionine
1.02 g of phthalated gelatin having a conversion rate of 97%, KBr0.
Keep 1192 ml of an aqueous solution containing 9 g at 35 ° C.
Stirred. AgNO₃Aqueous solution containing 4.47 g, 42 m
42 ml of an aqueous solution containing 1.16 g of KBr and 3.16 g of KBr
The solution was added over a period of 9 seconds by a wet method. 2.6 g of KBr added
After that, the temperature was raised to 63 ° C. to ripen. After ripening, Em
-Trimeric with a molecular weight of 100,000 used in the preparation of -B
Added 41.2 g of toned gelatin and 18.5 g of NaCl
did. After adjusting the pH to 7.2, dimethylamine
8 mg was added. AgNO₃203 ml of aqueous solution and K
The final flow rate of Br aqueous solution is the initial flow rate by the double jet method.
It was added so as to be 3.8 times. At this time, the silver potential is saturated
It was kept at -30 mV with respect to the calomel electrode. AgNO ₃
440.6 ml of aqueous solution containing 110.2 g and KBr aqueous solution
The final flow rate is 5.1 times the initial flow rate by double jet method.
And the mixture was added over 24 minutes. This
At this time, the AgI fine grain emulsion used in the preparation of Em-A was
Simultaneous flow rate so that silver iodide content is 2.3 mol%
Accelerate addition and add silver potential to saturated calomel electrode
-20 mV. 1N potassium thiocyanate water
After adding 10.7 ml of the solution, AgNO₃24.1g
153.5 ml of aqueous solution containing
It was added over a period of 2 minutes and 30 seconds by the wet method. At this time,
The position was kept at 10 mV. Silver potential by adding KBr aqueous solution
Was adjusted to -70 mV. AgI fine grain emulsion described above
6.4 g in terms of KI weight was added. Immediately after addition is complete
AgNO₃404 ml of an aqueous solution containing 57 g in 45 minutes
Migrated. At this time, the potential at the end of the addition is -30 mV.
It adjusted with KBr aqueous solution so that it might become. Almost like Em-A
Similarly, it was washed with water and chemically sensitized.

(Production method of Em-E) An aqueous gelatin solution (1250 ml of distilled water, 48 g of deionized gelatin, 0.75 g of KBr) was charged into a reaction vessel equipped with a stirrer, and the temperature of the solution was kept at 80 ° C. An aqueous solution of KBr having an equimolar concentration with 276 ml of an aqueous solution of AgNO ₃ was added to this solution by a controlled double jet addition method over 7 minutes to obtain pAg7.
It was added while keeping at 26. Then, the temperature was lowered to 68 ° C., and 7.6 ml of thiourea dioxide (0.05 wt%) was added.

Subsequently, 592.9 ml of an AgNO ₃ aqueous solution
(Including 108.0 g of AgNO ₃ ) KB in equimolar concentration
A mixed aqueous solution of r and KI (2.0 mol% KI) was added over 18 minutes and 30 seconds by a controlled double jet addition method while maintaining the pAg at 7.30. Five minutes before the end of the addition, 18.0 m of thiosulfonic acid (0.1 wt%) was added.
1 was added.

Em-E was re-dispersed by desalting and washing with a usual flocculation method,
It adjusted to 6.2 and pAg7.6.

Subsequently, Em-E was subjected to the following spectroscopy and chemical sensitization.

First, sensitizing dye 12-b and sensitizing dye 12-
c, sensitizing dye 12-d was added, and then sodium thiosulfate, aqueous potassium thiocyanate and potassium chloroaurate were added, and ripening was performed at 68 ° C. The aging time and the amount of addition were adjusted so that the sensitivity at 1/100 second exposure was the highest.

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(Production method of Em-P) 3.5 μm per 1 g
Oligomethionine containing low molecular weight of 15,000
Oxidized gelatin 1.25 g, KBr 0.9 g, E
0.2 g of the modified silicone oil used in the preparation of mA
1200 ml of the aqueous solution containing the solution was maintained at 39 ° C., and the pH was 1.8.
And stirred vigorously. AgNO₃Including 0.95g
Aqueous solution and KBr aqueous solution in 25 seconds by double jet method
Migrated. After the addition is completed, 5.0 g of KBr is added, and
Thereafter, the temperature was raised to 70 ° C. to ripen. After aging, per 1g
Molecular weight 10,000 containing 35 μmol methionine
0 g of succinated gelatin was added. pH 5.9
After adjusting to 2.1 g of KBr and 4.0 g of NaCl,
Was added. AgNO₃288ml aqueous solution and KBr aqueous solution
Was added by the double jet method over 53 minutes. this
The AgI fine grain emulsion used in the preparation of Em-A was
Simultaneously added so that the silver halide content becomes 3.1 mol%
And the silver potential is -40 mV with respect to the saturated calomel electrode.
Kept. After adding 2.5 g of KBr, AgNO ₃8
Double jet of 7.7g aqueous solution and KBr aqueous solution
Flow rate so that the final flow rate is 1.2 times the initial flow rate.
Added quickly over 63 minutes. At this time, the above AgI
The fine grain emulsion has a silver iodide content of 5.5 mol%.
At the same time, accelerate the flow rate and add, and set the silver potential to -60 m
Kept at V. After adding 1 mg of thiourea dioxide, A
gNO₃132 ml of aqueous solution containing 41.8 g and KBr water
The solution was added by the double jet method over 25 minutes. Attachment
KBr aqueous solution so that the potential at the end of the application becomes +20 mV
Was adjusted. Sodium benzenethiosulfonate
The pH was adjusted to 7.3 after the addition of 2 mg. K
The silver potential was adjusted to -70 mV by adding Br. Continued
AgNO₃609 ml of an aqueous solution containing 66.4 g
Added over 0 minutes. KBr water solution for 6 minutes at the beginning of addition
The silver potential was maintained at -70 mV with the liquid. At this time, AgNO₃
(7.1 g) aqueous solution and KI (6.9 g) aqueous solution and molecular weight
20,000 gelatin aqueous solution in another chamber as above
Mix immediately before addition and add simultaneously for 5 minutes.
Was. After washing with water, gelatin was added, and pH 6.
5. Adjusted to pAg 8.2. Compounds 11 and 12
After the addition, the temperature was raised to 56 ° C. AgI fine particles described above
0.0004 mol of the emulsion was added to 1 mol of silver.
Thereafter, sensitizing dyes 13 and 14 were added. Thiocyanic acid
Potassium, chloroauric acid, sodium thiosulfate, N, N-di
Methylselenourea was added for optimal chemical sensitization. Chemistry
At the end of the sensitization, compounds 13 and 14 were added.

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(Production of Em-F and Q) Em-F and Q were prepared by adjusting the amount of AgNO ₃ added, the flow rate and the amount of iodine during nucleation in the preparation of Em-P.
However, the sensitizing dyes of Em-E were replaced with sensitizing dyes 12, 15, 16,
17, 17-b, and 17-c.

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(Production method of Em-G) 0.90 g of low molecular weight gelatin having a molecular weight of 15,000, 1.2 g of KBr, KI
An aqueous solution (1200 ml) containing 0.175 g and the modified silicon oil (0.3 g) used in the preparation of Em-A was maintained at 33 ° C., the pH was adjusted to 1.8, and the mixture was vigorously stirred. AgNO ₃
Aqueous solution containing 1.8 g and K containing 3.2 mol% KI
The aqueous Br solution was added by the double jet method over 9 seconds. At this time, the excess concentration of KBr was kept constant. 62 ° C
And aged. After ripening, 35 μmo per g
17.8 g of trimellitized gelatin containing 1 methionine and chemically modifying amino groups having a molecular weight of 100,000 with trimellitic acid was added. After adjusting the pH to 6.3, 2.9 g of KBr was added. AgNO ₃ aqueous solution 27
0 ml and an aqueous KBr solution were added by the double jet method over 37 minutes. At this time, particles prepared by mixing an aqueous solution of a low molecular weight gelatin having a molecular weight of 15,000, an aqueous solution of AgNO _{3 and an} aqueous solution of KI in a separate chamber having a magnetic coupling induction type stirrer described in JP-A-10-43570, immediately before addition. An AgI fine grain emulsion having a size of 0.008 μm was simultaneously added so that the silver iodide content became 4.1 mol%, and the silver potential was set to −50 mV with respect to a saturated calomel electrode.
Kept. After adding 2.6 g of KBr, AgNO ₃ 8
An aqueous solution containing 7.7 g and an aqueous KBr solution were added over 55 minutes by a double jet method while accelerating the flow rate so that the final flow rate was 3.1 times the initial flow rate. At this time, the AgI fine grain emulsion prepared by mixing immediately before the addition was accelerated at the same time so that the silver iodide content became 7.9 mol%, and the silver potential was kept at -70 mV. Thiourea dioxide 1mg
, An aqueous solution 13 containing 41.8 g of AgNO ₃
2 ml and an aqueous KBr solution were added by a double jet method over 20 minutes. The addition of the aqueous KBr solution was adjusted so that the potential at the end of the addition was +20 mV. Temperature to 78 ° C,
After adjusting the pH to 9.1, KBr was added to lower the potential to-.
The voltage was set to 60 mV. 3.73 g of the AgI fine grain emulsion used in the preparation of Em-A was added in terms of KI weight. Immediately after the completion of the addition, 321 m of an aqueous solution containing 66.4 g of AgNO ₃
was added over 4 minutes. KBr for 2 minutes at the beginning of addition
The silver potential was kept at -60 mV with the aqueous solution. It was washed with water and chemically sensitized almost in the same manner as Em-F.

(Production method of Em-H) 10.8 g of ion-exchanged gelatin having a molecular weight of 100,000, 6.2 g of KBr,
An aqueous solution containing 0.46 g of KI was kept at 40 ° C. and stirred vigorously. Aqueous solution containing 11.85 g of AgNO ₃ and KBr
Was added over 45 seconds by the double jet method. After the temperature was raised to 60 ° C., 24.1 g of ion-exchanged gelatin having a molecular weight of 100,000 was added and ripened. After the completion of ripening, an aqueous solution of AgNO ₃ and an aqueous solution of KBr were added by a double jet method over a period of 20 minutes so that the final flow rate was 2.6 times the initial flow rate. At this time, the silver potential was kept at +40 mV with respect to the saturated calomel electrode. Ten minutes after the start of the addition, 0.1 mg of K ₂ IrCl ₆ was added.
After adding 7 g of NaCl, an aqueous solution containing 45.6 g of AgNO ₃ and an aqueous KBr solution were added over 12 minutes by a double jet method. At this time, the silver potential was kept at +90 mV. In addition, 19mg of yellow blood salt over 6 minutes from the start of addition
100 ml of an aqueous solution was added. 14.4 g of KBr
After the addition, 5.3 g of the AgI fine grain emulsion used in the preparation of Em-A was added in terms of KI weight. Immediately after the addition was completed, an aqueous solution containing 42.7 g of AgNO ₃ and an aqueous KBr solution were added over 11 minutes by a double jet method. At this time, the silver potential was kept at +90 mV. It was washed with water and chemically sensitized almost in the same manner as Em-F.

(Production method of Em-I) Em-I was prepared by adjusting the temperature during nucleation, the amount of gel during nucleation, the addition rate, and the amount of iodine in the preparation of Em-H.

(Production method of Em-J) 3.5 μm per 1 g
Oligomethionine containing low molecular weight of 15,000
Containing 1.38 g of oxidized gelatin and 0.6 g of KBr
Adjust the pH to 2 by keeping 1200 ml of the aqueous solution at 50 ° C.
And stirred vigorously. AgNO₃Aqueous solution containing 1.96 g
Aqueous solution containing 1.67 g of KBr and 0.172 g of KI
Was added by the double jet method over 30 seconds. End of ripening
After completion, contains 35 μmol methionine / g
Amino group with a molecular weight of 100,000 is chemically modified with succinic acid
17.8 g of succinated gelatin was added. pH 5.
After adjusting to 9, KBr 3.19 g, NaCl 4.2
g was added. AgNO₃60.7 ml of aqueous solution and KBr
The aqueous solution was added by the double jet method over 31 minutes.
At this time, the silver potential was set to -40 mV with respect to the saturated calomel electrode.
Kept. AgNO₃Aqueous solution containing 65.6 g and KBr
The final flow rate of the aqueous solution is double jet method and the final flow rate is 2.
Accelerate the flow rate to 1x and add over 37 minutes
Was. At this time, the AgI fine particle milk used in the preparation of Em-A
At the same time so that the silver iodide content becomes 3.5 mol%.
And accelerate the flow rate, and keep the silver potential at -30 mV.
Was. After adding 1.5 mg of thiourea dioxide, AgN
O₃132 ml of aqueous solution containing 41.8 g and KBr aqueous solution
Was added by the double jet method over 13 minutes. End of addition
The KBr aqueous solution was adjusted so that the silver potential at the end was +40 mV.
The addition was adjusted. Sodium benzenethiosulfonate 2
mg, KBr was added to bring the silver potential to -100.
Adjusted to mV. The above AgI fine grain emulsion was converted to KI by weight.
A total of 6.2 g was added. Immediately after the addition is completed, AgNO ₃
Add 300ml of aqueous solution containing 98.5g over 17 minutes
Added. In addition, the yellow blood salt was reduced to 1 for 13 minutes from the start of the addition.
100 ml of an aqueous solution containing 5 mg was added. At the end of the addition
Adjust by adding KBr aqueous solution so that the potential becomes +60 mV.
It was adjusted. After washing with water, add gelatin and pH at 40 ° C.
It adjusted to 6.5 and pAg8.2. Compounds 11 and 1
After adding 2, the temperature was raised to 61 ° C. Sensitizing dye 18, 1
After the addition of 9, 20 and 21, K₂IrCl₆,
Potassium ocyanate, chloroauric acid, sodium thiosulfate,
Optimum chemical sensitization by adding N, N-dimethylselenourea
did. Compounds 13 and 14 were added at the end of chemical sensitization.
Was.

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(Production method of Em-K) 1200 ml of an aqueous solution containing 3.9 g of low molecular weight gelatin having a molecular weight of 15,000 and 5.3 g of KBr was kept at 50 ° C. and stirred vigorously. AgNO
_3. 27 ml of an aqueous solution containing 7.75 g and 6.25 g of KBr
Was added by the double jet method over 1 minute. After heating to 75 ° C., 6.9 g of AgNO ₃
Was added over 2 minutes. NH ₄
After sequentially adding 26 g of NO ₃ and 56 ml of 1N NaOH, the mixture was aged. After aging, the pH was adjusted to 4.8.
438 ml of an AgNO ₃ aqueous solution and 458 ml of an aqueous solution containing 102.6 g of KBr were added by a double jet method so that the final flow rate was four times the initial flow rate. After the temperature was lowered to 40 ° C., 5.6 g of Compound 15-b in terms of KI was added, and 64 cc of a 0.8 M aqueous sodium sulfite solution was further added. Further, an aqueous NaOH solution was added to raise the pH to 9.0 and maintained for 4 minutes to rapidly generate iodide ions. Then, the pH was returned to 5.5. Return the temperature to 55 ° C,
After adding 7.1 g of r, 4 mg of sodium benzenethiosulfonate and 0.05 mg of K ₂ IrCl ₆ were added.
177 ml of an aqueous solution containing 57.2 g of AgNO ₃ and KBr
223 ml of an aqueous solution containing 30.2 g was added by the double jet method over 8 minutes. In addition, 100 ml of an aqueous solution containing 10 mg of yellow blood salt was added over 6 minutes from the start of the addition. It was washed with water and chemically sensitized almost in the same manner as Em-J.

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(Preparation of Em-L) Em-L was prepared by changing the temperature during nucleation, the amount of gelatin, the flow rate of addition, the amount of iodine, etc. in the preparation of Em-K.

(Production method of Em-M, N) Em-H or E
It was prepared in much the same way as mI. However, chemical sensitization is Em
Performed in substantially the same manner as -J.

(Production method of Em-O) It was prepared in substantially the same manner as in Em-E. However, the chemical sensitization was performed in substantially the same manner as in Em-J.

Table 4 summarizes the characteristic values of the silver halide emulsions Em-A to Em-Q.

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[Table 4]

(Composition of photosensitive layer) The main materials used in each layer are classified as follows: ExC: cyan coupler UV: ultraviolet absorber ExM: magenta coupler HBS: high boiling point organic solvent ExY: yellow Coupler H: gelatin hardener.

(Specific compounds are described in the following, with numerical values following symbols and chemical formulas after the symbols).

The number corresponding to each component indicates the coating amount in g / m ² , and the coating amount in terms of silver is shown for silver halide.

First Layer (First Antihalation Layer) Black Colloidal Silver Silver 0.195 0.07μ Surface Fogging AgBrI (2) Silver 0.02 Gelatin 0.97 ExC-1 0.003 ExC-30 003 Cpd-2 0.002 HBS-1 0.006 HBS-2 0.003.

Second Layer (Second Antihalation Layer) Black Colloidal Silver Silver 0.086 Gelatin 0.437 ExM-1 0.057 ExF-1 3.0 × 10 ^-3 HBS-1 0.084 Solid Disperse Dye ExF -2 0.021 solid disperse dye ExF-3 0.028.

Third layer (intermediate layer) AgBrI (2) 0.07μ 0.030 ExC-2 0.026 polyethyl acrylate latex 0.095 gelatin 0.314.

Fourth layer (low-sensitivity red-sensitive emulsion layer) Silver iodobromide emulsion M silver 0.085 silver iodobromide emulsion N silver 0.300 silver iodobromide emulsion O silver 0.258 ExC-1 0.119 ExC-3 0.054 ExC-4 0.082 ExC-5 0.021 ExC-6 0.013 Cpd-2 0.032 Cpd-4 0.032 HBS-1 0.19 Gelatin 0.90.

Fifth Layer (Medium Speed Red Sensitive Emulsion Layer) Silver Iodobromide Emulsion K Silver 0.25 Silver Iodobromide Emulsion L Silver 0.6 ExC-1 0.24 ExC-2 0.036 ExC-30 0.030 ExC-4 0.22 ExC-5 0.026 ExC-6 0.017 Cpd-2 0.037 Cpd-4 0.029 HBS-1 0.26 Gelatin 1.28.

Sixth layer (high-sensitivity red-sensitive emulsion layer) Silver iodobromide emulsion J silver 1.47 ExC-1 0.21 ExC-3 0.13 ExC-6 0.032 ExC-7 0.012 ExY- 5 0.011 Cpd-2 0.049 Cpd-4 0.079 HBS-1 0.29 HBS-2 0.15 Gelatin 2.17.

Seventh layer (intermediate layer) Cpd-1 0.091 Solid disperse dye ExF-4 0.034 HBS-1 0.055 Polyethyl acrylate latex 0.93 Gelatin 0.88.

Eighth Layer (Layer Which Gives Layered Effect to Red Sensitive Layer) Silver iodobromide emulsion P silver 0.590 Cpd-4 0.040 ExM-2 0.099 ExM-3 0.031 ExY-1 034 ExG-1 0.009 HBS-1 0.088 HBS-3 0.006 Gelatin 0.68.

Ninth layer (low-sensitivity green-sensitive emulsion layer) Silver iodobromide emulsion G silver 0.40 silver iodobromide emulsion H silver 0.35 silver iodobromide emulsion I silver 0.43 ExM-2 0.36 ExM-3 0.035 ExG-1 0.025 HBS-1 0.38 HBS-3 0.03 HSB-4 0.32 Gelatin 1.42.

Tenth Layer (Medium Speed Green Sensitive Emulsion Layer) Silver Iodobromide F Silver 0.23 Silver Iodobromide Emulsion G Silver 0.23 ExC-6 0.012 ExM-2 0.033 ExM-30 0.032 ExY-1 0.010 ExM-4 0.032 ExG-1 0.010 HBS-1 0.069 HBS-3 2.6 × 10 ^-3 gelatin 0.54.

Eleventh Layer (High Sensitive Green Sensitive Emulsion Layer) Emulsion Q Silver 1.18 ExC-6 0.005 ExM-1 0.018 ExM-3 0.039 ExM-4 0.025 ExM-5 0.006 ExY-5 0.006 ExM-2 0.018 ExG-1 0.008 Cpd-4 0.009 HBS-1 0.19 Polyethyl acrylate latex 0.12 Gelatin 1.13.

Twelfth Layer (Yellow Filter Layer) Yellow Colloidal Silver Silver 0.037 Cpd-1 0.18 Solid Dispersion Dye ExF-5 0.018 Solid Dispersion Dye ExF-6 0.006 HBS-1 0.089 Gelatin 1 .005.

Thirteenth layer (low-sensitivity blue-sensitive emulsion layer) Silver iodobromide emulsion C silver 0.28 silver iodobromide emulsion D silver 0.10 silver iodobromide emulsion E silver 0.12 ExC-1 0.051 ExC-8 0.014 ExY-1 0.039 ExY-2 0.73 ExY-3 0.12 ExY-4 0.006 Cpd-2 0.12 Cpd-3 4.3 × 10 ^-3 HBS-10 .27 gelatin 1.46.

Fourteenth layer (high-sensitivity blue-sensitive emulsion layer) Silver iodobromide emulsion A silver 0.68 silver iodobromide emulsion B silver 0.38 ExC-1 0.017 ExY-2 0.32 ExY-30 0.07 ExY-6 0.068 Cpd-2 0.077 Cpd-3 1.2 × 10 ^-3 HBS-1 0.12 Gelatin 0.95.

Fifteenth layer (first protective layer) 0.07 μg of AgBrI (2) silver 0.33 UV-1 0.23 UV-2 0.15 UV-3 0.22 UV-4 0.027 F- 18 0.011 F-19 0.006 F-20 0.006 HBS-1 0.13 HBS-4 5.1 × 10 ^-2 gelatin 2.4.

16th layer (second protective layer) H-1 0.50 B-1 (diameter 1.7 μm) 5.2 × 10 ^-2 B-2 (diameter 1.7 μm) 0.16 B-30 .07 S-1 0.30 gelatin 0.78.

Further, in order to improve the storability, processability, pressure resistance, fungicidal and bactericidal properties of each layer, B-4 to B
-6, F-1 to F-18, and iron salts, lead salts, gold salts,
Platinum salt, palladium salt, iridium salt, ruthenium salt,
Contains a rhodium salt. In addition, 9.5 × 10 ^-3 g per mol of silver halide was added to the coating solution for the eighth layer,
A sample was prepared by adding 7.0 × 10 ⁻³ grams of calcium to one layer with an aqueous solution of calcium nitrate.

Further, in order to improve the antistatic property, W-
At least one of W-1, W-7, and W-8 is contained, and at least one of W-2 and W-5 is contained to improve applicability.

Preparation of Dispersion of Organic Solid Disperse Dye ExF-3 shown below was dispersed by the following method. That is, water 2
1.7 ml and 3 ml of a 5% aqueous solution of sodium p-octylphenoxyethoxyethoxyethoxyethanesulfonate and 0.5 g of a 5% aqueous solution of 0.5 g of p-octylphenoxypolyoxyethylene ether (polymerization degree 10) were put into a 700 ml pot mill. , Dye ExF-
2 and 5.0 g of zirconium oxide beads (diameter 1 mm)
500 ml was added and the contents were dispersed for 2 hours. For this dispersion, a BO type vibration ball mill manufactured by Chuo Koki was used. After the dispersion, the contents were taken out, added to 8 g of a 12.5% aqueous gelatin solution, and the beads were removed by filtration to obtain a gelatin dispersion of the dye. The average particle size of the dye fine particles is 0.4
It was 4 μm.

In the same manner, a solid dispersion of ExF-4 was obtained. The average particle size of the fine dye particles is 0.24 μm, respectively.
It was 0.45 μm and 0.52 μm. ExF-2 is a microprecipipi described in Example 1 of EP-A-549,489A.
station) and dispersed by a dispersion method. The average particle size was 0.06 μm.

A solid dispersion of ExF-6 was dispersed by the following method.

To 2800 g of an ExF-6 wet cake containing 18% of water, 376 g of 4000 g of a 3% solution of water and W-2 were added and stirred to obtain a 32% slurry of ExF-6. Next, 1700 ml of zirconia beads having an average particle diameter of 0.5 mm was filled in Ultra Viscomil (UVM-2) manufactured by Imex Co., Ltd., and the slurry was passed through the slurry at a peripheral speed of about 10 m / sec and a discharge rate of 0.5 liter / min for 8 hours. Crushed.

The compounds used for forming each of the above layers are as shown below.

[0251]

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[0252]

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[0253]

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[0254]

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[0255]

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[0256]

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[0257]

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[0258]

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[0259]

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[0260]

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[0261]

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[0262]

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[0263]

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[0264]

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[0265]

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[0266]

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(2) Production of Units 2 and 3 with Lens (Comparison) The Gno of the strobe is changed by changing the capacity of the main condenser 39, the shutter speed, etc. from the film unit 1 with the lens, and the film unit with the lens A few were made. Film unit with lens 2, 3
Table 5 shows the specifications.

[0268]

[Table 5]

(3) Production of Unit 4 with Lens (Invention) Sample 1 of photographic film 37 was obtained from unit 1 with lens.
The unit with a lens 4 was manufactured by converting the sample No. 01 into a sample 104. By changing the nucleation conditions for particle formation and the like from the Em-A to Q of the sample 101, the Em-A-4 to Q-
4 was prepared, and the amount of silver applied was adjusted.
SO = 1800, total dried film thickness 26 μm).

Table 6 summarizes the characteristic values of the silver halide emulsions Em-A-4 to Q-4.

[0271]

[Table 6]

(4) Production of unit 5 with lens (for comparison) Sample 1 of photographic film 37 was obtained from unit 1 with lens.
The unit with a lens 5 was manufactured by converting the sample No. 01 into a sample 105. By changing the nucleation conditions for particle formation from the Em-A to Q of the sample 101, the Em-A-5 to Q-
5 was prepared, and a sample 105 (ISO = 1800, total dry film thickness 27 μm) was prepared.

Table 7 summarizes the characteristic values of the silver halide emulsions Em-A-5 to Em-5.

[0274]

[Table 7]

The development was performed by an automatic developing machine F manufactured by Fuji Photo Film Co., Ltd.
Performed as follows using P-360B. The remodeling was performed so that the overflow solution of the bleaching bath was not discharged to the post-bath but was entirely discharged to the waste liquid tank. This FP-360B is equipped with the evaporation correction means described in Hatsumei Kyokai Disclosure Technique No. 94-4992.

The processing steps and the composition of the processing solution are shown below.

(Processing process) Process Processing time Processing temperature Replenishment amount * Tank capacity Color development 3 minutes 5 seconds 37.8 ° C 20 ml 11.5 liter Bleaching 50 seconds 38.0 ° C 5 ml 5 liter Fixing (1) 50 seconds 38.0 ° C ─ 5 liter Fixing (2) 50 seconds 38.0 ° C 8 ml 5 liter Washing water 30 seconds 38.0 ° C 17 ml 3 liter Stable (1) 20 seconds 38.0 ° C ─ 3 liter Stable (2) 20 seconds 38.0 ° C 15 ml 3 liter Drying 1 minute 30 60.0 ° C / sec * Replenishment rate is 35 mm of photosensitive material and 1.1 m width (24E
x. One equivalent).

The stabilizing solution and the fixing solution were of the countercurrent type from (2) to (1), and the overflow of the washing water was all introduced into the fixing bath (2). The amount of the developer brought into the bleaching step, the amount of the bleaching liquid brought into the fixing step, and the amount of the fixing liquid brought into the washing step were 35 mm in width of the photosensitive material and 1.1 m in width.
2.5 ml, 2.0 ml, and 2.0 ml, respectively. The crossover time is 6 seconds in each case, and this time is included in the processing time of the previous step.

The opening area of the above processor was 10
0cm ² , 120cm ^{2 for} bleaching solution, about 1 other processing solution
00 cm ² .

The composition of the processing liquid is shown below.

(Color developer) Tank solution (g) Replenisher (g) Diethylenetriaminepentaacetic acid 3.0 3.0 Catechol-3,5-disulfonate disodium 0.3 0.3 Sodium sulfite 3.9 3 Potassium carbonate 39.0 39.0 Disodium-N, N-bis (2-sulfonatoethyl) hydroxylamine 1.5 2.0 Potassium bromide 1.3 0.3 Potassium iodide 1.3mg-4-Hydroxy -6-methyl-1,3,3a, 7-tetrazaindene 0.05-hydroxylamine sulfate 2.4 3.3 2-methyl-4- [N-ethyl-N- (β-hydroxyethyl) amino Aniline sulfate 4.5 6.5 Add water 1.0 liter 1.0 liter pH (adjusted with potassium hydroxide and sulfuric acid) 10.05 10.18.

(Bleaching solution) Tank solution (g) Replenishing solution (g) Ferric ammonium 1,3-diaminopropanetetraacetate monohydrate 113 170 Ammonium bromide 70 105 Ammonium nitrate 14 21 Succinic acid 34 51 Maleic acid 28 42 Add water 1.0 liter 1.0 liter pH [adjusted with aqueous ammonia] 4.6 4.0.

(Fixing (1) Tank Liquid) A 5/95 (volume ratio) mixture of the above bleaching tank liquid and the following fixing tank liquid (pH:
6.8).

(Fixing (2)) Tank solution (g) Replenisher (g) Ammonium thiosulfate aqueous solution 240 mL 720 mL (750 g / L) Imidazole 721 Ammonium methanethiosulfonate 515 Ammonium methanesulfinate 10 30 Ethylenediaminetetraacetic acid 13 39 Add water 1.0 liter 1.0 liter pH [adjusted with aqueous ammonia and acetic acid] 7.4 7.45.

(Rinse water) Tap water was replaced with H-type strongly acidic cation exchange resin (Amberlite IR- manufactured by Rohm and Haas Company).
120B) and a mixed bed column packed with an OH type strongly basic anion exchange resin (Amberlite IR-400) to reduce the calcium and magnesium ion concentration to 3 m.
g / liter or less, followed by sodium diisocyanurate 20 mg / liter and sodium sulfate 1
50 mg / liter was added. The pH of this solution is 6.5
〜7.5.

(Stabilizing solution) Common to tank solution and replenisher (unit g) Sodium p-toluenesulfinate 0.03 Polyoxyethylene-p-monononylphenyl ether 0.2 (Average degree of polymerization: 10) 1,2-benzo Isothiazolin-3-one sodium 0.10 Ethylenediaminetetraacetic acid disodium salt 0.05 1,2,4-triazole 1.3 1,4-bis (1,2,4-triazol-1-ylmethyl) piperazine 0. 75 Add water 1.0 liter pH 8.5.

<Comparative Experiment> Using the film units 1 to 5 with lenses, 200 scenes were photographed indoors and nights, and 50 scenes outdoors during the day.

After the processing of each color negative film, a color print was prepared by a digital printer. The prints (1, 4) photographed by the film units with lenses 1 and 4 of the present invention were able to reproduce an appropriate subject and background density in all scenes. Also, color reproduction,
The sharpness was also very good. However, the prints taken at 4 were slightly more grainy and slightly more blurry than the prints taken at 1. In the case of the unit (2) with a lens for comparison, a scene with a completely dark background was noticeable in indoor nighttime photography. In addition, the unit (3) with the lens for comparison had many dark scenes as a whole in indoor nighttime shooting, and even in a bright scene, the subject was blurred or blurred under any shooting conditions. . The unit (5) with the comparative lens was able to reproduce an appropriate subject and background density, and was excellent in color reproduction. However, a rough print (conspicuous graininess) and a slightly blurred print were obtained. The conspicuousness, especially the conspicuousness of the graininess of the human skin in a dark scene, was very large.

The print was subjected to a sensory evaluation for 20 subjects. In the same scene, the preferred film unit with lens is ranked as 1 to 5, and is ranked 1st, 8th, 2nd, 6th, 3rd, 4th, 4th, 2nd, 5th, 0th, Evaluation was made based on the total score.

[0290]

[Table 8]

As shown in Table 8, it can be seen that the present invention has an overwhelmingly high support rate, can take a photograph having an appropriate density in any photographing environment, and can provide a photograph preferable for the user.

In the above experiment, one film cartridge was used.
The results were the same even when a unit with a lens was used in which the back surface and the support were changed to 35, and the support was changed to a cellulose triacetate film support with a film undercoat.

As can be seen from Table 3 above, the film with lens of the present invention can be used in a wide exposure range from LV6 to LV16 when the strobe is not used or when the background does not reach the strobe light. When flash photography is performed with a background of LV6 or higher, a print of an appropriate main subject and a background density ratio can be obtained. LV6 or more is almost satisfied in a normal lighting environment.

(Embodiment 2) Film with lens 6 An example of a film unit with lens using an exposure amount switching method using a shape memory element is shown (see FIG. 6).

In this embodiment, a shape memory element 21 is provided in parallel with CdS 14. Further, a transistor Tr5 having a collector connected to the shape memory element 21 and a base connected between CdS14 and the resistor R2 is provided.
The solar cell B supplies power only when the subject brightness is higher than a predetermined brightness. The operation of the transistor Tr5 is activated when the CdS detects that the luminance of the object is higher than the predetermined luminance, and does not operate when the CdS detects that the luminance of the object is lower than the predetermined luminance.

Therefore, when the brightness is high, the shape memory element 21 is energized, so that the shape memory element 21 generates heat by its own resistance and is deformed into a high-temperature shape due to a rise in temperature due to the heat generation. When the brightness is low, the shape memory element 21 is not energized, so that the shape memory element 21 remains in the shape at normal temperature.

In this embodiment, the aperture is switched according to the change in the shape of the shape memory element 21. The configuration of this aperture switching will be described with reference to FIG.
7A is a diagram in which the aperture is set to a small aperture, and FIG.
Is a diagram in which the aperture is made large.

In FIG. 7, the aperture plate 22 has a small aperture 22a formed therein, and is attached so as to be rotatable about a support shaft 23. The shape memory element 21 described above is fixedly attached at one end to the right of the upper portion 22c of the aperture plate 22, and the aperture plate
A tension spring 24 is fixedly attached at one end to the left side of the upper portion 22c of the 22.

As described above, when the luminance of the subject is high, the shape memory element 21 is deformed into a shape at the time of high temperature, and the shape memory element 21 is squeezed against the tension spring 24 as shown in FIG. The plate 22 is rotated clockwise, and the diaphragm plate 22 is
And positioned. At this time, the aperture is a small aperture 22a
Is switched to.

When the brightness of the subject is low, FIG.
As shown in FIG. 2B, the shape memory element 21 is at room temperature, the tension spring 24 rotates the diaphragm plate 22 in the counterclockwise direction, and the diaphragm plate 22 contacts the stopper 26 and is positioned. At this time, since the aperture plate is made transparent, the aperture stop is switched to a large stop incorporated in the lens.

The shape memory element 21 may have any shape difference between the shape at normal temperature and the shape at high temperature depending on the presence or absence of a heating effect by energization, so long as the diaphragm plate 22 can be moved. Although it may be such as, for example, Ti
-A shape memory alloy or a shape memory resin made of a Ni alloy can be used.

Specifications of Film 6 with Lens

[0303]

[Table 9]

The above specifications are merely examples, and any specifications satisfying the requirements of the present invention can be adopted.

A sample 106 was used as a photographic film. Em-A-6 to Q-6 were produced by changing the nucleation conditions and the like for particle formation from Em-A to Q of Sample 101, and Sample 106 was produced.

Table 10 shows the characteristic values of the silver halide emulsions Em-A-6 to Em-6.

[0307]

[Table 10]

Sample 106 (total dry film thickness: 22.5 μm)
Was prepared by changing the coating amount of each material from the sample 101 as described below. The numbers corresponding to the components are as follows:
The coating amount is shown in g / m ² unit. For silver halide, the coating amount is shown in terms of silver.

First Layer (First Antihalation Layer) Black Colloidal Silver Silver 0.185 0.07μ Surface Fogged AgBrI (2) Silver 0.01 Gelatin 0.87 ExC-1 0.003 ExC-3 003 Cpd-2 0.002 HBS-1 0.006 HBS-2 0.003.

Second Layer (Second Antihalation Layer) Black Colloidal Silver Silver 0.076 Gelatin 0.407 ExM-1 0.057 ExF-1 3.0 × 10 ^-3 HBS-1 0.084 Solid Disperse Dye ExF -2 0.021 solid disperse dye ExF-3 0.028.

Third layer (intermediate layer) AgBrI (2) 0.07μ 0.027 ExC-2 0.026 polyethyl acrylate latex 0.095 gelatin 0.294.

Fourth layer (low-sensitivity red-sensitive emulsion layer) Silver iodobromide emulsion M-6 silver 0.175 Silver iodobromide emulsion N-6 silver 0.370 ExC-1 0.110 ExC-3 0.050 ExC-4 0.080 ExC-5 0.020 ExC-6 0.011 Cpd-2 0.030 Cpd-4 0.030 HBS-1 0.17 Gelatin 0.88.

Fifth Layer (Medium Speed Red Sensitive Emulsion Layer) Silver Iodobromide Emulsion K-6 Silver 0.23 Silver Iodobromide Emulsion L-6 Silver 0.80 ExC-1 0.23 ExC-2 0.036 ExC-3 0.030 ExC-4 0.20 ExC-5 0.026 ExC-6 0.017 Cpd-2 0.037 Cpd-4 0.029 HBS-1 0.26 Gelatin 1.08.

Sixth layer (high-sensitivity red-sensitive emulsion layer) Silver iodobromide emulsion J-6 Silver 1.47 ExC-1 0.21 ExC-3 0.13 ExC-6 0.032 ExC-7 0.012 ExY-5 0.011 Cpd-2 0.049 Cpd-4 0.070 HBS-1 0.29 HBS-2 0.15 Gelatin 1.87.

Seventh layer (intermediate layer) Cpd-1 0.088 Solid disperse dye ExF-4 0.034 HBS-1 0.055 Polyethyl acrylate latex 0.93 Gelatin 0.68.

Eighth Layer (Layer that Gives Layered Effect to Red-Sensitive Layer) Silver Iodobromide Emulsion P-6 Silver 0.500 Cpd-4 0.038 ExM-2 0.090 ExM-3 0.031 ExY-1 0.034 ExG-1 0.009 HBS-1 0.088 HBS-3 0.006 Gelatin 0.48.

Ninth layer (low-sensitivity green-sensitive emulsion layer) Silver iodobromide emulsion G-6 silver 0.40 Silver iodobromide emulsion H-6 silver 0.30 Silver iodobromide emulsion I-6 silver 0.41 ExM-2 0.36 ExM-3 0.035 ExG-1 0.025 HBS-1 0.38 HBS-3 0.03 HSB-4 0.32 Gelatin 1.32.

Tenth Layer (Medium Speed Green Sensitive Emulsion Layer) Silver Iodobromide Emulsion F-6 Silver 0.20 Silver Iodobromide Emulsion G-6 Silver 0.24 ExC-6 0.012 ExM-2 0.033 ExM-3 0.032 ExY-1 0.010 ExM-4 0.032 ExG-1 0.010 HBS-1 0.069 HBS-3 2.6 × 10 ^-3 gelatin 0.50.

Eleventh Layer (High Sensitive Green Sensitive Emulsion Layer) Emulsion Q-6 Silver 1.08 ExC-6 0.005 ExM-1 0.018 ExM-3 0.039 ExM-4 0.025 ExM-50 0.006 ExY-5 0.006 ExM-2 0.018 ExG-1 0.008 Cpd-4 0.009 HBS-1 0.19 Polyethyl acrylate latex 0.12 Gelatin 1.03.

Twelfth Layer (Yellow Filter Layer) Yellow Colloidal Silver Silver 0.040 Cpd-1 0.18 Solid Disperse Dye ExF-5 0.018 Solid Disperse Dye ExF-6 0.006 HBS-1 0.089 Gelatin 1 0.010.

Thirteenth layer (low-sensitivity blue-sensitive emulsion layer) Silver iodobromide emulsion C-6 silver 0.24 Silver iodobromide emulsion D-6 silver 0.08 Silver iodobromide emulsion E-6 silver 0.10 ExC-1 0.045 ExC-8 0.010 ExY-1 0.039 ExY-2 0.73 ExY-3 0.12 ExY-4 0.006 Cpd-2 0.12 Cpd-3 4.3 × 10 ^-3 HBS-1 0.27 gelatin 1.36.

Fourteenth layer (high-sensitivity blue-sensitive emulsion layer) Silver iodobromide emulsion A-6 silver 0.65 Silver iodobromide emulsion B-6 silver 0.35 ExC-1 0.017 ExY-2 0.32 ExY-3 0.07 ExY-6 0.068 Cpd-2 0.077 Cpd-3 1.2 × 10 ^-3 HBS-1 0.12 Gelatin 0.85.

15th layer (first protective layer) 0.07 μg of AgBrI (2) silver 0.32 UV-1 0.23 UV-2 0.15 UV-3 0.22 UV-4 0.027 F- 18 0.011 F-19 0.006 F-20 0.006 HBS-1 0.13 HBS-4 5.1 × 10 ^-2 gelatin 2.2.

Sixteenth layer (second protective layer) H-1 0.50 B-1 (diameter 1.7 μm) 5.2 × 10 ^-2 B-2 (diameter 1.7 μm) 0.16 B-30 .07 S-1 0.30 gelatin 0.76.

Further, the sensitivity of the photographic film was changed from the lens-equipped unit 6 by changing the nucleation conditions and the like for the grain formation of the emulsion of the photographic film, and by changing the amount of coated silver and the like, thereby producing units 7 and 8 with the lens. .

[0326]

[Table 11]

Here, the “particle size of the particles in the layer having the highest sensitivity” will be described. "The particle size of the particles in the layer having the highest sensitivity" refers to the average particle size of the particles contained in the layer having the highest sensitivity in the photosensitive layer having substantially the same color sensitivity as described in the text. (Diameter of the same volume sphere) ".

<Comparative Experiment> Using the film units with lenses 6 to 8, 200 scenes were photographed indoors and nights, and 50 scenes outdoors during the day.

After processing each color negative film, a color print was prepared using a digital printer. The print (6) photographed by the film unit with lens 6 of the present invention was able to reproduce an appropriate subject and background density in all scenes. The color reproduction and sharpness were also very good. On the other hand, the unit with a comparative lens (7) was able to reproduce an appropriate subject and background density, and was excellent in color reproduction. However, a rough print (conspicuous graininess) and a slightly blurred print were obtained. The conspicuousness, especially the conspicuousness of the graininess of the human skin in a dark scene, was very large. In addition, the unit (8) with the lens for comparison had many dark scenes as a whole in indoor nighttime shooting, and even in bright scenes, there were very many scenes in which the subject was blurred or blurred under any shooting conditions. .

The print was subjected to a sensory evaluation for 20 subjects. In the same scene, the preferred film unit with a lens is ranked as 1 to 3, and is ranked as 1st 8 points, 2nd 4 points, 3rd 0 points,
Evaluation was made based on the total score.

[0331]

[Table 12]

[0332] As shown in Table 12, it can be seen that the present invention has an overwhelmingly high support rate, can take a photograph of an appropriate density in any photographing environment, and can provide a photograph preferable for the user.

<Embodiment 3> The same result as in Embodiment 1 was obtained by using the lens-fitted film unit 9 having the following exposure adjustment function and specifications as the lens-fitted film unit.

(Film unit with lens 9) An example of a film unit with lens using a method of adjusting the exposure amount using a filter will be described.

FIG. 8 shows a schematic configuration of a photographing unit according to the present invention.

The photographing unit sequentially forms, from the object side, a photographing lens 81 for image formation, an aperture hole 82 for determining the F-number of the photographing lens 81, a filter 83 for exposure adjustment, and a light beam reaching the film surface. Sector 84 and sector opening
Consists of 85. The sector 84 is normally urged by a spring to shield the sector opening 85 from light. By pressing down the shutter button, the shutter lever
The lock of 86 is released, and the shutter lever 86 moves to the right in FIG. Along with this movement, by pushing a claw provided on the upper surface of the sector 84, the sector 84 starts rotating in a direction opposite to the urging direction. As the sector 84 rotates, the light blocking of the sector opening 85 is released, and the light passing through the photographing lens 81 is exposed on the film. When the shutter lever 86 further moves and the shutter lever 86 passes over the upper surface of the sector 84, the sector 84 rotates in the opposite direction by the force of the biasing spring, and shields the sector opening 85, and the shooting ends. .
At this time, the analog meter 87 performs a turning motion by a predetermined angle in response to the brightness using the electromotive force of the solar cell. A gear 88 is attached to the central axis of the analog meter 87, and the gear 88 is connected to a filter 83 provided in the photographing optical path, so that the position of the filter 83 can be adjusted according to the amount of rotation of the gear 88. Is changing. Filter 83
Since the density is continuously changing, the brightness at this time and the positional relationship of the filter 83 are maintained in a predetermined relationship, so that the amount of light reaching the film surface can be controlled by the external light if it is within the control range of the analog meter 87. A constant exposure amount can be obtained regardless of the luminance. Further, since the so-called kicking shutter mechanism performs exposure adjustment by reciprocating motion, exposure unevenness occurs in the horizontal direction of the screen. That is, in the case of the layout of FIG. 8, since the sector 84 rotates clockwise, the right side of the screen in FIG. Since the filter 83 of this embodiment is arranged on the image side of the aperture of the photographing lens 81, the exposure unevenness due to the sector 84 can be absorbed by increasing the density on the side where the sector 84 starts to open. On the other hand, in the flash photography, since the sector 84 emits light at the timing when it is fully opened, the exposure unevenness due to the sector 84 does not occur. Therefore, the strobe unit of the present embodiment is a filter 83
The light distribution characteristics are shifted so as to correct the exposure unevenness due to the above. Since the change in density of the filter 83 changes by 1 EV at 0.3, the change in density within the range of the sector opening 85 is 0.3
The following is desirable, and the maximum density is a matter to be determined in consideration of the size of the sector opening 85 and the moving amount of the filter 83, and is not particularly limited. In addition, the filter 83 has a function of absorbing a predetermined amount of light,
The selection can be made within a range that does not affect the performance of 81, for example, a positive film or the like that captures a chart whose density continuously changes is also possible.

Table 13 shows the specifications of the film 9 with a lens.

Specification of Film 9 with Lens

[0339]

[Table 13]

The lens-equipped film 9 can be used from LV8.0 to LV11.
The exposure adjustment mechanism operates during the period, and adjustment is performed so that the exposure is substantially constant between the exposure regions. As the photographic film, a sample (total dry film thickness: 27 μm) adjusted to ISO1600 by correcting the amount of coated silver, the amount of coated coupler, and the like from Sample 101 described above was used. Table 14 shows the relationship between the subject brightness and the exposure level of the film with lens 9.

[0341]

[Table 14]

The above specification is merely an example, and any specification that satisfies the requirements of the present invention, such as the specification of the films with lenses 1 to 8, can be adopted.

[0343]

By using the film unit with a lens of the present invention, all of the following items which could not be achieved by the conventional film unit with a lens can be realized.

A background is drawn on a print at an appropriate density under all photographing conditions of LV6 to LV16. -Provide a photograph having an appropriate main subject / background density ratio, especially in a low luminance range such as indoors or at night. • Let the user choose whether to use a strobe.・ Provides beautiful photos even during daytime strobe shooting.

As described above, a satisfactory photograph can be provided in any photographing environment in response to the user's request.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an operation state of an aperture adjustment mechanism.

FIG. 2 is an overall perspective view of a lens-fitted film unit having a built-in aperture adjusting mechanism of FIG. 1;

FIG. 3 is an exploded perspective view of the lens-fitted film unit of FIG. 1;

FIG. 4 is an exploded perspective view showing a main part of an aperture adjustment mechanism.

FIG. 5 is a circuit diagram showing a strobe circuit when a solar cell is used as a photometric device.

FIG. 6 is a circuit diagram of aperture switching using a shape memory element.

FIG. 7 is a diagram showing a configuration of switching aperture using a shape memory element.

FIG. 8 is a front view of a photographing unit capable of adjusting an exposure amount using a filter.

FIG. 9 is a side view of an imaging unit capable of adjusting an exposure amount using a filter.

FIG. 10 is a diagram schematically showing a concentration distribution of a filter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Film unit 1 with a lens 18 ... Solar cell 21 ... Shutter button 42 ... Strobe light emission prohibition switch 51 ... Cam plate 54, 55 ... Aperture plate 57 ... Analog meter 57a ... Needle B ... Battery Tr5 ... Transistor 14 ... CdS 21 ... Shape Memory element 22 ... Aperture plate 82 ... Aperture hole 83 ... Filter 84 ... Sector 87 ... Analog meter

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) G03B 17/04 G03B 17/04 F term (Reference) 2H002 AB06 CD04 CD12 FB25 FB26 FB38 FB64 GA26 JA05 2H053 AA06 AD21 BA71 2H101 AA01

Claims (6)

[Claims] In a film unit with a lens provided with a photographing lens, a shutter device having a fixed speed, a diaphragm, and a strobe device, and a pre-loaded unexposed photographic film, a shutter speed of the shutter device is set to T.
Second, the guide number of the strobe device is set to G (ISO1
00 · m), a photometric unit that satisfies the relationship of 7.0 ≦ log ₂ (G ² ) + log ₂ (1 / T) ≦ 12.5 and outputs a light quantity signal corresponding to the subject light quantity. A silver halide emulsion having an adjustment mechanism for changing an exposure amount to the photographic film in accordance with the light amount signal, and wherein the photographic film has an average aspect ratio (equivalent circle diameter / thickness) of 4.0 or more. Having at least one light-sensitive silver halide emulsion layer containing: 2. A lens-equipped film unit having a photographing lens, a fixed-speed shutter device, a diaphragm and a strobe device, and a pre-loaded unexposed photographic film, wherein the shutter speed of the shutter device is set to T.
Second, the guide number of the strobe device is set to G (ISO1
00 · m), a photometric unit that satisfies the relationship of 7.0 ≦ log ₂ (G ² ) + log ₂ (1 / T) ≦ 12.5 and outputs a light quantity signal corresponding to the subject light quantity. An adjusting mechanism for changing an exposure amount of the photographic film in accordance with the light amount signal, and wherein the photographic film is a layer having the highest sensitivity among photosensitive layers having substantially the same color sensitivity. A lens having at least one photosensitive silver halide emulsion layer containing a silver halide emulsion having an average grain size (diameter of a sphere having the same volume) of 1.0 μm or more and 3.0 μm or less. With film unit. 3. The lens-fitted film unit according to claim 1, wherein the silver halide emulsion has an average aspect ratio of 8 or more. 4. The method according to claim 1, wherein the total thickness of the layer applied to the photosensitive layer side with respect to the support of the photographic film is 32 μm or less. The described film unit with lens. 5. The apparatus according to claim 1, wherein the adjustment mechanism is an exposure amount adjustment by changing an aperture value.
5. The film unit with a lens according to any one of items 4 to 4. 6. The film unit with a lens according to claim 1, wherein the adjustment mechanism is an exposure amount adjustment by changing a light amount transmitted through the lens.