JPS6250748A - Printing device - Google Patents

Abstract

PURPOSE:To perform a proper exposure in printing and enlargement and to obtain a print with good color balance by reading trimming information recorded on a film and determining an exposure value, a photometry range, and enlargement magnification in printing. CONSTITUTION:The film F is irradiated with light from a lamp LA through a color filter CF and a lens EL and the transmitted light is transmitted through a zoom lens PL for printing and projected on photographic paper PS to print the image. At this time, the code imprinted on the film F is read by a line sensor 60 and sent to a code reader 58. The magnifications of the printing zoom lens PL and a zoom lens ML for the photometry are controlled on the basis of the photographic information read by the reader 58. The magnification is set and then a signal is sent from an exposure arithmetic circuit 66 to the lamp LA and color filter CF to make the exposure proper. Thus, the trimming information is read to perform enlargement and printing properly, so a print with good color balance is obtained.

Description

[Detailed Description of the Invention] Production-Ic e! ? = The present invention relates to a photographic printing apparatus that prints images recorded on photographic film onto photographic paper or the like.

U [Conventionally, in Japanese Patent Application Laid-Open No. 54-26721, a camera is used to take a picture by cropping only a part of the normal shooting range and the film is printed as a print of the film that was taken normally. A camera system has been proposed that can obtain the same effect as changing the photographic magnification without changing the photographic lens by enlarging the photograph to the same size as the print.

However, when using such a camera, only a portion of the normal photographic area is printed on photographic paper, so the exposure value is determined by metering the entire normal image area. If the color balance is determined, there is a risk that a print with appropriate density and color balance may not be obtained because the photometry is performed on areas that are not printed.

Therefore, the present invention has been developed to eliminate such risks, and to print a print with accurate exposure values and color balance according to only the area to be printed, even if a cropping instruction is given at the time of photographing. The purpose is to provide a device.

Team! In order to achieve the above object, the printing VC device according to the present invention includes a trimming information reading means for reading trimming information related to trimming photography recorded on the film, and a trimming information reading means for determining the exposure value at the time of printing. a photometering means for measuring the photometry of the film, a photometry range setting means for setting the photometry range of the photometer according to the read trimming information, and a photometry range setting means for setting the enlargement magnification during printing according to the read trimming information. It is desirable to have an enlargement magnification setting means.

(2) Therefore, according to the present invention, the photometric range of the photometric means and the enlargement magnification during printing are set according to the trimming information.

(Margin below) Fire 1st I Examples of the present invention will be described in detail below.

First, FIG. 1 is a perspective view showing a camera according to an embodiment of the present invention. #In the IJ1 diagram, (2) is the camera body, (4)
(6) is a date selection switch that selects whether or not to print the date on photographic paper when enlarging, (8) is a trimming setting button that sets the necessity of trimming and its size, (LCD, ) is a liquid crystal display device that displays various information regarding shooting, and includes a shirt release button (4) and a date selection switch (6).
), trimming setting button (8) and liquid crystal display (
The LCD, ) is arranged on the top surface of the camera body (2), as shown in the top view of FIG. Here, the date selection switch (6) is of a sliding type, and the date is printed in the illustrated position, and the date is no longer printed when it is slid in the (X) direction in the figure. The trimming setting button (8) is configured so that whether or not trimming is necessary and the trimming location are changed depending on the number of times the button is pressed. , trimming setting button (8)
If it is not pressed even once, the entire normal shooting range will be printed without any trimming, and if you press the trimming setting button (8) once, the mode will be set to trimming 1 mode in which the JA shadow range, which is slightly narrower than the normal state, will be printed. , press twice to trim a narrower print area 2
If you press it three times, you will be in trimming mode 3 for the narrowest print range, and if you press it further, you will be in close-up mode, which will be described later. Then, when the trimming setting button (8) is further pressed, the original normal shooting mode is returned to. The gist will be described later.

Furthermore, in FIG. 1, (12) is a flash light emitting part,
(14) is a facing window, (16) is a facing lighting window, and (18m) and (18b) are a pair of ranging windows, respectively, and these are located on the camera body (2) as shown in the front view of Figure 3. It is located at the front.

(20) is the photographing lens, (22) is the self! ! Each photometering window for lJ exposure control is shown.

FIG. 4 is a cross-sectional view showing a seven-wing aperture distance measuring optical system of such a camera. In FIG. 4, the finding optical system is an inverse system consisting of an objective lens (Ll) with negative refractive power and an eyepiece lens (B2) with positive refractive power, which are arranged inside the finding window (14). Consists of a reo optical system.

A semi-transparent mirror (H) is arranged between the TT object lens (L,) and the eyepiece lens (B2), and a liquid crystal display device (LCD 2) is arranged behind the finder lighting window (16).
The light that passes through the mirror (M) and is reflected by the mirror (M) is guided to the finder. On the other hand, a distance-measuring light emitting diode (24) is arranged behind the distance-measuring window (18a), and is configured to project infrared light onto the subject via a projection lens (L,). .

Then, the reflected light from the subject is received by the distance measuring light receiving element (26) via the light receiving lens (L,) placed behind the distance measuring window (ISB), and the distance to the subject is determined from the light receiving state. be measured. Since many principles of distance measurement are already known, a detailed explanation will be omitted.

Here, the range to be printed when trimming is selected will be explained using FIG. 5.

The tjSs diagram is a front view showing one screen of a normal 35mm film, and in the normal shooting mode in which trimming is not selected, the entire vertical range of 24mm%lili3Gmm is printed. In trimming 1 mode, the range indicated by (A,) is printed, and in trimming 2 mode, (
The range shown in A2) is printed, and in the trimming 3 mode, the range shown in (A,) is printed. Here, the ratio of the print area on the film in the trimming 1.2.3 mode to the normal shooting mode is approximately 1:1.
//72:1/2:1/3 is set. Therefore,
When the film taken in each mode is stretched to the same size, the focal length f of the photographing lens is 35III11
Then, the same range as that photographed by lenses having the focal lengths shown in Table 1 below will be printed.

(The following is a margin) Table 1 Next, FIG. 6 shows the display mode within the viewing field by the liquid crystal display device (LCD 2). LCD display f? ! (
The L CD 2) is provided with four types of frames (F, ) (Fl) (F2) (F3) depending on the trimming range, and one of them can be selected depending on the setting state of the trimming setting button (8). It is configured to be displayed. That is, in the viewfinder field of view, in the normal shooting mode without trimming, the frame (Fo) is displayed, in the trimming 1 mode, the frame (Fl) is displayed, in the trimming 2 mode, the frame (F2) is displayed, and in the trimming 3 mode, the frame (F2) is displayed. and 7 frames (F,) are displayed in close-up mode.

Next, using FIG. 7, the relationship between the range photographed and printed by the photographic lens (20) and the photometry range of the photometry system disposed inside the photometry window (22) will be explained. In FIG. 7, in the normal photographing mode in which trimming is not selected, the range (B1) is photographed and printed on the entire film by the photographing lens (20). In trimming mode 3, which has the smallest print area, (B2
) range is printed. Here, the angle of view of the photographic lens (20) with respect to the minimum print range (B2) is assumed to be a. On the other hand, behind the photometric window (22) is a photometric lens (B5).
), a filter (F), and a photometric optical system consisting of a light receiving element (28), and if its angle of view is β, then a
It is set so that ≧β.

With this configuration, the photometric range is always located within the printed range, and even if trimming is performed, photometric information that always corresponds to the printed range can be accurately obtained.

FIG. 8 is a diagram showing a display mode of the liquid crystal display device (LCD) shown in FIG. 1. However, although all display elements are displayed in the case of the deaf person shown in Figure i@8, in reality, not all display elements are displayed. In No. 8 and 1, (Ml), (M2), and (M3) are display elements each indicating the set shooting mode of the camera;
In the normal shooting mode in which no trimming or close-up is performed, only the display element (Ml) is displayed. Then, when one of the trimming 1, 2, and 3 modes is selected by operating the trimming setting button (8), only the display element (M2) is displayed. On the other hand, when the close-up mode is selected, only the display element (M,) is displayed.

(D , HD 2) (D 3) (D , ) (D S) are display elements that are displayed to display the trimming range according to the shooting mode, respectively. First, in the normal shooting mode, a display element (D,) indicating that the printing range is the widest is displayed. In the case of the trimming mode, the display element (Dl) and one of (D 2 ), (D 3 ), and (D 2 ) is selectively displayed depending on the trimming range. For example, in the case of trimming 1 mode, which has the widest printing range among trimming operations, display elements (Dl) and (D2) are displayed, and in the case of trimming 2 mode, display elements (Dl) and (
D, ) is displayed, and in the case of trimming 3 mode, display elements (D, ) and (D, ) are displayed. In the case of close-up shooting mode, the display element (D,)
is displayed.

(DA) is a display element that displays date data to be printed, and if printing of date data is not selected, no date data is displayed.

Note that the display element (DA) may display the date even when the date data is not printed. (
FC) is a display element that displays the number of captured frames. Furthermore, (FE) is a display element that displays the state in which the film is loaded.

In this way, the liquid crystal display device (LCD) displays various photographing modes, the date to be printed, the number of film shots, the loading state of the film, and the like. - For example, in Fig. 9, the trimming 2 mode is selected and the display elements (M2HD, ) (D3> are displayed, and data corresponding to "July 25, 1985" is displayed as date data. The display mode of the liquid crystal display device ff1 (LCD) shows that the film is printed, the number of film shots is 24, and the film is normally loaded.

Next, FIG. 10 shows a rear view of the camera body (2) with the back cover open. In FIG. 10, the camera body (2) is provided with a spool chamber (2a) that stores a spool (28) on the right side of the figure, and a cartridge chamber (2b) that stores a film cartridge on the left side of the figure. ) is provided. Thus, as the film is wound, it is moved from the left to the right in the figure. (2c) is a screen frame corresponding to the film at the photographing position, and a code imprinting unit (z) (30) for imprinting various photographic information on the film as a code is arranged at the right end of the screen frame.

This hood imprint (30) is the first
As shown in the enlarged view of Figure 1, one end of the 17 fibers (30a) is arranged in the vertical direction of the figure so as to face the 2L agent surface of the film.

As shown in the enlarged cross-sectional view of the code imprinting unit (30) in FIG. It is opposed to the diode (32a).

Figure i13 is a hood imprint unit) (30
) is an enlarged view showing a cross section of the surrounding area. In FIG. 13, (FI) indicates the loaded and wound film, and this film (FI) is attached to the camera back cover (34).
The screen frame (2c) is crimped at a predetermined position by a crimping plate (40) to which an appropriate crimping force is applied by a pressure plate spring (38) fixed to the screen frame (2c) with a pin (36). The code imprint unit (30) is fixed to the camera body (2) and the light-shielding tube (42), and a light-shielding plate (44) is provided on the surface facing the optical axis of the photographic lens. Here, each light emitting diode (32a) is connected to a light emitting diode drive circuit (LEDR), which will be described later, via a flexible board (PB), and the light emitting diode (32a) is connected to a light emitting diode drive circuit (LEDR), which will be described later.
The lighting or extinguishing state of 2a) is controlled, and the code to be imprinted on the film is set.

Therefore, as shown in FIG. 14, a code corresponding to the screen is printed on the right edge of the screen when the film is viewed from the back side. That is, the hood corresponding to the screen (F L ,) is (CO,), and the screen (F L 2) has the code (
CO2) is supported, and the screen (FLY) has a code (
CO,) is supported. In addition, in Fig. 14, (C
R) indicates the range in which the code is read; the right side of the figure is the direction of the leading edge of the film, and the left side is the direction of the cartridge.

As mentioned above, the code for one screen of the film is composed of 17-bit digital signals, and the information represented by each bit will be explained using FIG. 15. First, FIG. 15 is a view of the film photographed from the back side in the same manner as FIG. 14, and the right side of the figure is the leading end of the film. The 17-bit code is replaced by the 3-bit trimming information code (C
t), 1 Bin F date print availability information hood (Cs)
, 4-bit year information code (Cy), 4-bit month information code (C!n), and 5-bit day information code (C!
d) It is made up of. Here, the trimming information code (
Ct), the bits of this code (Ct) are sequentially (bl) (b2) (b,) from the top of the diagram.
Table 2 shows the relationship between the set shooting state and each bit signal.

Where, "1" indicates that the light emitting diode corresponding to that bit is turned on, and "θ" indicates that the light emitting diode corresponding to that bit is turned off.

The date printability information hood (Cs) is 1" if the date is to be printed, and "" if the date is not to be printed.
0”. Year information hood (Cy), month information code (C
+*) and day information code (Cd) are used by converting year, month, and day data into digital binary numbers.

Next, the electric circuit of the camera of this embodiment will be explained using the circuit diagram of FIG. 16. In the fjsIG diagram, (S
l) is a photometric switch that is closed when the first step of the shirt release button (4) shown in FIG. ) is the trimming setting button (8) shown in Figure 1.
) is a key switch that opens and closes in conjunction with the camera's camera back. (S6) is a film detection switch that opens when film is loaded and is being wound, and closes when no film is loaded. (S7) is a shirt release. The count switch (S,) is @1, which is closed at the beginning of operation and opened when the shutter is fully charged.
This date print selection switch is linked to the illustrated date selection switch (6) and is closed when the date is to be printed and opened when the date is not to be printed.

Switches (Sl) to (S,) are respectively start switches, and are connected to a control microcomputer (hereinafter abbreviated as control microcomputer) (CMC) via Nando Day (NA).
It is connected to the interrupt terminal (INT) of
Its input terminals (P I ,) (P I 2) (P I
3) (PI 4) is also directly connected. here,
An interrupt to the control microcomputer (CMC) is generated when the input to the interrupt terminal (INT) rises. The switch (S,)
(NA) is operated manually. This is to set the count value of the film counter to 0" when the back cover of the camera is opened.Furthermore, the switches (S5) to (S,) are connected to the input terminals (pI5) of the control microcomputer (CMC). )(
P I , ) (P I s), respectively. Further, each of the switches (S,) to (S,) is connected to a power supply terminal (E,) via a pull-up resistor, respectively.

(E) is a power supply battery for the camera, and its output is input to a control microcomputer (CMC) via a stabilizing circuit consisting of a diode (D2) and a capacitor (C1).

Here, circuits that tend to malfunction due to voltage fluctuations include a power supply terminal (El) stabilized by a stabilization circuit.
Power is supplied from the power supply battery (E), and other circuits are supplied with power directly from the power supply battery (E).

(FL) is a flash circuit that includes a flash discharge tube for flash photography and its control circuit.
A signal from the output terminal (PO7) of the MC) operates a booster circuit that applies a high voltage to the main capacitor for flash emission, and a signal from the output terminal P (POs) starts the flash emission. Further, when the charging voltage of the main capacitor reaches a predetermined value, a charging completion signal is sent to the control microcomputer (PI7) via the input terminal (PI7).
CM C).

(MD) is a motor drive circuit that controls the film winding motor (M), and is controlled by a control microcomputer (CM C
) is activated by the signal from the output terminal (P Os) of the motor (
M) is driven to wind the film, and the drive is braked by a signal from the output terminal (PO, ).

(CAS) is a film sensitivity reading switch that reads information about film sensitivity stored in advance in the film cartridge loaded in the camera and sets the open/close state according to that information.
Digital film sensitivity information is converted into an analog signal by a D/A frequency converter (D/A) I:J:. This analog film sensitivity signal is then input to a photometric circuit consisting of seven photodiodes (PD), an operational amplifier (OP), and a logarithmic compression diode (D), and added to the photometric signal. The output of this photometric circuit is therefore a photometric signal added with the film sensitivity signal, and this signal is sent to the transistor (TR,) via the buffer y(B).
input to the base of The above signal is then logarithmically expanded by a logarithm expansion circuit consisting of a 1 runnostar (TR,) and a capacitor (C1).

Here, the charging voltage of the capacitor (C3) is compared with a predetermined voltage E2 by a comparator (CN), and when the charging voltage of the capacitor (C1) becomes lower than the predetermined voltage E2, the transistor (TR5) becomes non-conductive. Then, the shutter magnet (SMg) is turned on and the shutter is closed. The transistors (T R2) (T R3) are connected to the output terminals (P O,
)1, the shutter magnet (SMg)
This is to control the timing of excitation and logarithmic expansion. Furthermore, the transistor (TR,) is controlled by the control microcomputer (
CM C) is controlled by the output terminal (p o 3) of the capacitor (C0) to rapidly photoelectrically change the open limit value of the shutter speed and the low speed limit value of the shutter speed. .

In addition, the output of the photometry circuit, which is a photometry signal to which the film sensitivity signal has been added, is input to an A/D converter (A/D) and converted to a digital signal, and then sent to the input terminal (PIAD).
The signal is input to the control microcomputer (CMC) via the . Furthermore, the digital signal corresponding to the film sensitivity from the switch (CAS) is input as is to the control microcomputer (CMC) from the input terminal (PIDX) of the control microcomputer (CMC), and also to the display microcomputer (DMC), which will be described later. is also entered.

(DMC) is a liquid crystal display (LCD) on the top of the camera.
and liquid crystal display device 1 (LCD2) within the 7-inch field of view.
This is a display microcomputer (hereinafter abbreviated as display microcomputer) that controls the display of the film and the code imprinted on the film. This display microcomputer (D
MC) is supplied with power via the power supply terminal (El), and date printing is selected. Then, the control microcomputer (CMC
) is configured so that an interrupt is generated by a signal to the interrupt terminal (inLl) (int2) connected to the output terminal (P O, , > (P 0.2). Here, the interrupt terminal (into ) is applied when changing the display on the liquid crystal display (LCD) (LCD 2), while an interrupt to the interrupt terminal (int2) is applied when imprinting the code onto the film.

Furthermore, the display microcomputer (DMC) includes a control microcomputer (
A signal related to the shooting mode is sent from the output terminal (PO
D) and input terminal (piD). Furthermore, as described above, a signal relating to film sensitivity is manually input to the input terminal (piDX).

Furthermore, it has a built-in clock mechanism for determining the date imprinted on the film.

The display microcomputer (DMC) controls the liquid crystal display device (LCD) on the top surface of the camera and the liquid crystal display device (LCD 2) for incoming display, respectively, via the liquid crystal drive circuit (LCDR). ing.

Therefore, from the display microcontroller (DMC) to the liquid crystal drive circuit (
LCDR) includes a shooting mode signal, date signal, film presence/absence No. 43, film winding signal,
A signal indicating whether to print the date or not is transmitted, and a liquid crystal drive circuit (LCDR) latches these display data. Further, the display microcomputer (DMC) sets the lighting/extinguishing state of a large number of light emitting diodes (32a) for hood projection via a light emitting diode drive circuit (LEDR). Here, the opening state of each light emitting diode (32a) when emitting light is changed according to the film sensitivity signal inputted to the input terminal (piDX).

(AF) is an automatic focus adjustment circuit that automatically measures the distance to the subject and adjusts the focus of the photographic lens according to the result, and is supplied with power from the electric terminal (E, ). The automatic focus adjustment circuit (AF) starts automatic focus adjustment operation in response to a signal from the output terminal (po) of the control microcomputer (CMC), and the detected subject distance is expressed as a 4-bit digital signal. Input terminal (PIA
F) is input to the control microcomputer (CMC). The output terminal (PO) of the control microcomputer (CMC) is set to "H" when the camera is set to close-up mode.
”, and all bits of the distance signal related to the subject distance are
■ 4" to force the distance signal to indicate the closest position. Therefore, at this time, the photographing lens is set to the closest position. (LMg) is a lens stop magnet, which will be explained later. When the distance signal and the signal related to the amount of lens extension match, the lens is demagnetized and the extension of the photographic lens is stopped.

(RMg) is a release magnet for starting lens extension, and is an output terminal (po
,. ), and after being excited for a certain period of time, it is then magnetized by ilV to release the locking of the photographing lens and start extending the photographic lens.

Next, a more detailed configuration of this automatic focus adjustment circuit (AF) is shown in FIG. 17. In the Pt517 diagram, (DD) is a phase separation detection circuit that is activated by a signal from the output terminal (POI) of the control microcomputer (CMC) and measures the distance to the subject. The optical system is shown in figure f54. The object distance detected by the distance detection circuit (DD) is output as a 4-bit digital signal, and each bit signal is sent to a comparator (C) via an OR circuit.
ON ) and the input terminal (PIAF)
It is also input to the control microcomputer (CMC). The other input terminal of the off-circuit is connected to a control microcontroller (
CM C) is connected to the output terminal (PO2), and therefore, when the close-up mode is selected, the distance No. 13 input to the comparator (CON) is connected to the output signal of the distance detection circuit (DD). Regardless, all bits become signals indicating the closest position of H''.

On the other hand, (EC) is an encoder that outputs pulses according to the amount of extension of the photographic lens, and the output pulses of the encoder (EC) are sent to the output terminal of the control microcomputer (CM C) (
A counter (CU
) is counted. Then, this count value and the distance signal are compared by a comparator (CON), and when both signals match each other, a comparator (CO
N) outputs an output and attaches it to the lens stop magnet (LMg).
) to stop the movement of the photographing lens at the position corresponding to the distance signal.

Here, in the camera capable of trimming according to the present invention, when the area to be printed on the film surface is made smaller as in the trimming 3 mode, it is the same as in the normal shooting mode where no trimming is performed. When the image is enlarged to the desired size, the enlargement magnification increases. Therefore, blur and flare, which were not noticeable in the normal shooting mode, become noticeable. Therefore, in the camera of this embodiment, the minimum aperture value (that is, the limit value on the open side of the aperture) and the limit value on the slow side of the shutter speed are changed depending on the print range, and the depth of field is increased when performing cropping. At the same time, the shutter speed is increased to prevent camera shake. Note that in this embodiment, a lens shutter that also serves as an aperture is used, so if the minimum aperture value is increased, the shutter speed will be increased accordingly; however, the present invention is not limited to this. It may be configured such that only the minimum aperture value or only the limit shutter speed is changed in accordance with the trimming.

Table 3 shows the photographing mode, minimum aperture value, and low-speed limit shutter speed in this embodiment.

Table 3 However, here, A vmax is the minimum aperture value, Tv+s
in indicates the limit shutter speed on the low speed side. This is the 18th
As shown in the figure. In Fig. 18, the vertical axis is the aperture value, and the horizontal axis is the time since the shutter starts opening. In normal shooting mode or trimming 1 mode, the aperture (F value) is 2.8, as shown in (A). The aperture can be opened or the shutter speed can be slowed down to a combination of shutter speeds of 1/30.

In the trimming 3 mode, as shown in (B), the aperture can only be opened or the shutter speed can be slowed down to a combination of an aperture (F number) of 5.6 and a shutter speed of 1/60. Furthermore, in the close-up mode, only a combination of an aperture (F number) of 16 and a shutter speed of 1/1000 can be set. If proper exposure cannot be obtained with the combination of aperture and shutter speed limited as described above, a flash is automatically emitted. As shown in the lower time chart of FIG. 18, for example, in the trimming 2 mode, if the aperture (CF value) is 5.6 and the shutter speed is 1760, underexposure occurs, the automatic focus adjustment circuit (AF) At time T1, when the shutter that also serves as an aperture is opened up to an aperture (F number) of 8, which is calculated based on a distance signal from and the shutter is apertured (
Output terminal (PO, ) at time T2 when opened to F value) 5.6
A signal is emitted from the lens to initiate the closing operation of the lens shutter.

Here, in this embodiment, the exposure value Ev for switching to flash emission is also configured to be changed depending on the shooting mode. Table 4 shows the relationship between this photographing mode and the exposure value at which flash emission is switched (this is referred to as exposure value Eve).

Table 4 Shooting mode Switchable exposure values Normal shooting mode Ev8 (no trimming) Trimming 1 mode Ev8 Trimming 2 mode Evl O trimming 3 mode
Evl 2 close up mode Evl
8 Here, the exposure value [Ev (or Eve) is, in Apex calculation, when the subject brightness is Bv, the film sensitivity is Sv, the aperture value is Av, and the shutter speed value is Tv, Ev (or Eve) = Bv + 5v =Av+Tv.

FIG. 19 shows the relationship between the aperture value and the shutter speed value when switching to flash light emission.

In Fig. 19, the vertical axis shows the aperture value, the horizontal axis shows the shutter speed value, and in the case of the normal shooting mode without trimming and the trimming 1 mode, the exposure value E is as shown in (Da).
Although the flash is not emitted when v is 8 or more, in the trimming 2 mode, the flash is not emitted only when the exposure value Ev is 10 or more as shown in (Ea). Furthermore, in the case of trimming 3 mode, the flash is not emitted only when the exposure value E'v is 12 or more as shown in (Fa), and in the case of close-up mode, the exposure value Ev is not emitted as shown in (Fa). If the number is 18 or above, the flash will not fire. This is because when the magnification during enlargement is large, the aperture is made as small as possible to increase the depth of field.

Next, we will discuss the control microcomputer (CM) that controls the camera of this embodiment.
The operation of C) will be explained based on ν1 based on FIG. FIG. 20 is a 70-chart showing the operation of the camera control microcomputer (CMC) of this embodiment shown in FIG. 16. In FIG. 20, the circuit is reset by a power-on reset when a battery is installed, and then in step #O, the input/output ports and memory of the control microcomputer (CMC) are all initialized. Here, all output terminals except the output terminals (P O, ) of the control microcomputer (CMC) are initially set to output "L",
The shooting mode is initially set to a normal shooting mode in which cropping and close-up are not performed. Next Ste Nobu #
1, each boat and each of the seven lags of the control microcomputer (CMC) are initialized. Then, in step #2, the signal at the output terminal (PO, ) of the control microcontroller (CC to IC) is raised, and the booster circuit of the flash circuit (FL) starts operating.Next, in step #3 External interrupts to the interrupt terminal (INT) of the control microcomputer (CMC) are permitted, and the system enters a normal stop state in step #4.

Then, the control microcomputer (CM
When an external interrupt is applied to the interrupt terminal (INT) of C), other external interrupts are prohibited in step #5, and the process proceeds to step #6.

In step #6 (steps will be omitted below), the open/close state of the winding switch (S,) connected to the input terminal (PI,) of the control microcomputer (CMC) is detected, and the switch (S4) is opened. If the winding of the film has been completed (OF F ), proceed to #7 and input the DX code information regarding the film sensitivity of the switch (CAS) from the input terminal (PIDX). Then, at #8, select the input terminal (PI) connected to the key switch (S,) linked to the trimming setting button (8).
From state 3), input information regarding the shooting mode (cropping size). The details will be described later.

Next, in #9, the open/closed state of the back cover switch (S5) is detected from the input terminal (P I 5), and if the i cover is open and the back cover switch (S5) is closed, ( If ON), proceed to #10 and set the count value of the film counter that counts the number of film shots to O''.#
If the back cover is closed at step 9 and the back cover switch (S, ) is open (in the case of OFF), # will pass through #10.
Proceeding to step 11, in #11, after an interrupt is sent from the control microcomputer (CMC) to the display microcomputer (DMC) from the output terminal (po, , ) for rewriting the display, the information necessary for display is transmitted, and the information necessary for display is transmitted to the liquid crystal display. Device (LCD,) (
A display is made using LCD 2).

Then, at well 12, the photometry switch (St) is connected from the input terminal (Pl, ) to the shirt release button (4).
If the open/closed state of the photometry switch (Sl) is detected and the photometry switch (Sl) is open, the state returns to #1 (OFF) and enters the normal stop state of #4. If the photometry switch (Sl) is closed (
ON), the signal of the output terminal (PO,) is lowered at well 13, and the external pressure of the 7-latch circuit (FL) is stopped. Then, in #14, the automatic focus adjustment circuit (AF) is activated by the start signal from the output terminal (po,) of the control microcomputer (CMC), and in #15, the automatic focus adjustment circuit (AF) is activated by the start signal from the output terminal (po,) of the control microcomputer (CMC).
From P I 2), the open state of the release switch (S2) linked to the shirt release button (4) is detected. Here, if the release switch (S2) is open (OFF), the process returns to #12 and the operations from #12 to #15 are repeated until the shirt release button (4) is pressed to the second step and the release switch is pressed. Wait until (S2) is closed. If the opening of the release switch (S2) is detected in #15, the shutter release operation proceeds from #16, which will be described later.

On the other hand, if it is detected that the winding switch (S, ) is open (ON) at #6, the winding of the film has not yet been completed, so the flow advances to #38 and the 7th winding circuit ( FL)'s external pressure is stopped and the winding routine starts from #39. At #39, the motor drive circuit (MD) is driven by the signal from the output terminal (P6s> of the control microcomputer (CMC)) to start the film winding motor (M) and start winding the film. At 40, the opening/closing state of the winding switch (S,) is detected to detect the completion of film winding.
When film winding is complete, press the winding switch (S,
) is released (OF F ), the motor (M) is driven. Open the winding switch (S4) with #40 (
When OFF) is detected, #41 stops the rotation of the motor (M> to stop film winding,
Proceed to.

#42 is the input terminal (P) of the control microcomputer (CMC).
The open/closed state of the film detection switch (S6) is detected from I, ), and if no film is loaded and the film detection switch (S6) is closed (ON), #4
In Step 5, the information necessary for display is transmitted from the control microcomputer (CMC) to the display microcomputer (DMC), and the process returns to #1.
When it is detected in #4 that the film is being wound and the film detection switch (S6) is open (OFF), the process goes to #43 and the camera back switch (S5) is turned off. ) is detected. Then, with #43, the back cover is opened and the back cover switch (S5)
is closed (ON), the process proceeds to #45 and transmits the information necessary for display from the control microcomputer (CMC) to the display microcomputer (DMC), returns to #1, and returns to the normal stop state in #4. becomes. Further, if the back cover is closed in #43 and the back cover switch (S5) is open (OFF), #
44 and set the count value of the film counter to "1"
Then proceed to #45 and transfer the information necessary for display from the control microcomputer (CMC) to the display microcomputer (DMC).
It returns to #1 and enters the normal stop state at well 4. That is, this configuration prevents the film counter from incrementing when the camera's lid is opened or when no film is loaded.

Next, the release routine starting from #16 will be explained. At #16, first, a photometric signal with film sensitivity taken into account is input from the A/D converter (A/D) to the control microcomputer (CMC) via the input terminal (PIAD).

Therefore, this photometric signal is taken as photometric data Eve. Then, in #17, in the camera of this embodiment, as shown in FIG. 19, the exposure value Eve at which the flash is switched is different depending on the shooting mode. read out. Then, in #18, the photometry data Evm is compared with the exposure value Eve for switching to 7-2 shots, and Evm>E
If it is VC, proceed to #25, which will be described later. On the other hand, Ev+e
If it is not >Eve, the metering data is lower than the exposure value Evc for switching to 7-lash photography.
#19 is the input terminal (PI7) of the control microcomputer (CMC).
), it is determined whether the main capacitor for flash emission of the flash circuit (FL) has been fully charged. If this charging is completed, proceed to #20 and set a flash photography flag instructing flash photography. If this charging is not completed yet, #1
Return to #4 and wait for this charging to complete.

In #21, it is determined whether the shooting mode is set to close-up mode, and if it is not close-up mode, in #23, the input terminal (PIAF ), a signal related to the subject distance is input. On the other hand, when it is determined in #21 that the closed 7-tube mode is set, the process proceeds to #22 and sends a "H" signal from the output terminal (PO□) of the control microcomputer (CMC) to the automatic mode, α The object distance signal is transmitted to an adjustment circuit (AF) to forcibly convert the object distance signal into a signal corresponding to the closest distance. Then, in #23, the control microcomputer (CM
A signal related to the subject distance is input to C) via the input terminal (PIAF).

In #24, the control microcomputer (CMC) connects the terminal (PIA
The value corresponding to the subject distance signal input from F) is stored in the ROM.
, and set it in the light emission timing timer provided inside the control microcomputer (CMC). this is,
This is because when performing flash photography, the aperture value is determined by the 7-latch mechanical mechanism according to the subject's distance in millimeters, and the 7-latch emission timing is determined according to the aperture value as shown in FIG. 18. Next, in #25, the control microcomputer (CMC) sets the value according to the shooting mode to RO.
Read from M and set it to the exposure limit timer. This is because in this embodiment, the minimum aperture value and minimum shutter speed are limited depending on the shooting mode.

In #26, the output terminal (p
An imprinting signal is output from 0, . Then, at #27, the shatter magnet (SMg) is excited by the rising edge of the signal from the output terminal (po, ) of the control microcomputer (CMC), and the signal from the output terminal (po, , ) excites the shutter magnet (SMg). The release magnet (RMg) is started to operate, and the photographing lens is extended after a certain period of time. Then, in #28, the open/closed state of the count switch (S7) is detected from the input terminal (P I s) of the control microcomputer (CM C), and the process waits for the count switch (S, ) to be closed. Here, when the count switch (S, ) is closed at the beginning of the shirt release operation, the process proceeds to #29 and the integration of the exposure amount is started. Here, the photometric system of this embodiment has a sub-diaphragm whose aperture diameter changes depending on the amount of light transmitted through the lens shutter,
Charging of the capacitor (C1) starts with the start of integrating the exposure amount.

At #30, it is determined whether or not the flash photography flag that instructs 7-latency photography is set, and if the flash photography flag is set, the process proceeds to #31 and starts the above-mentioned light emission timing timer. , enable timer interrupts and proceed to #32. If the 7-lash shooting flag is not set in #30, proceed directly to #32. Then, in #32, an exposure limiting timer is started, which is set in advance for one hour according to the appropriate exposure amount, and in #33, this timer overflows, but the lens is also used as a lens. Since a shutter is used, the aperture value and shutter speed value are set at the same time by one exposure limit timer, but each is controlled separately so that various combinations of aperture and shutter speed can be changed. It may be configured.

Then, in #33, the exposure limit timer is over 70-
is detected, the process advances to #34 and the control microcomputer (C
The signal at the output terminal (p o , ) of the MC) rises, the transistor (TR, ) becomes conductive, the shutter magnet (SMg) is forcibly demagnetized, and the shutter, which also serves as an aperture, is closed. After the exposure is completed and the shutter is closed in #35, wait for a predetermined period of time, and then close the shutter in #3.
Return to the winding routine of 9.

Here, the timer interrupt routine in #31 is shown in Figure ttS21. First, when a timer interrupt occurs, the timer interrupt is inhibited in #36, and the output terminal optical signal of the control microcomputer (CMC) is emitted in #37. 7 lights λ is emitted and returned to the original step.

The action of step #8 in FIG. 20 is shown in more detail in FIG. 22. In FIG. 22, first, #8-
1, the open/closed state of the trimming key switch (S,) is detected, and if the key switch (S,) is closed (ON
), proceed to #8-2 and set trimming mode Renostar to 1
Change stage and proceed to #8-3. If the trimming key switch (S3) is open in #8-1, proceed to #8-3 without going through #8-2. In #8-3, the switch (CAS) is connected to the input terminal (PIDX). From the input sensitivity of the loaded film, the film sensitivity is l
It is determined whether or not it is 5O100O or more.

And if the sensitivity of the loaded film is ■5oi
If it is equal to or more than ooo, the process proceeds to #8-4, where it is determined whether the mode is below trimming 2 mode, and if it is below trimming 2 mode, the mode is changed to normal photography mode without trimming in #8-5.

On the other hand, the sensitivity of the film loaded in #8-3 is l5
If it is determined that the sensitivity is 0100 or less, the process proceeds to #8-6, where it is determined whether the sensitivity of the film is 50400 or more. And if it is 15O400 or more, #8
-7, it is determined whether or not the trimming mode is 3 or less, and if it is the trimming 3 mode or less, the process returns to the normal shooting mode without trimming at #8-8. If the film sensitivity is not 15O400 or higher in #8-6, and #8
If the setting is -7 and the trimming mode is not lower than 3, the shooting mode is not particularly changed.

Therefore, according to this embodiment, as shown in FIG. 23, if the sensitivity of the loaded film is less than 15O400, each time the trimming setting button (8) is pressed, the normal shooting mode is changed to the trimming 1 mode. , from trimming 1 mode to trimming 2 mode V, from trimming 2 mode to trimming 3 mode, from trimming 3 mode to close-up mode, and from close-up mode to normal shooting mode. If the value is less than 15O100O, pressing the trimming setting button (8) from the trimming 2 mode returns to the normal shooting mode and the trimming 3 mode and close-up mode are not set.

Furthermore, if a high-sensitivity film of 1501000 or more is used, pressing the trimming setting button (8) from the trimming 1 mode returns to the normal shooting mode, and the trimming 2.3 mode and close-up mode are not set. This is because the higher the sensitivity of the film, the coarser the grain, so trimming photography and close-up mode that require a large enlargement magnification become less desirable as the sensitivity of the film increases. The limits of trimming are set differently accordingly.

Next, the operation of the display microcomputer (DMC) of this embodiment will be explained using the 70-charts shown in FIGS. 24 to 26. First, the display microcomputer (DMC) All input/output ports and memory are initialized.For example, the clock mechanism built into the display microcontroller (DMC) is initialized to "January 1, 1985," and the shooting mode is set to normal shooting mode. The count values of the film counters are each initialized to θ''.Next, in #47, the stored contents of data necessary for display and imprinting on the film are decoded.Then, in #48, this data is decoded. The information is transmitted to the liquid crystal drive circuit (LCDR), and the necessary information is displayed by the liquid crystal display bag 5! (LCD, ) (LCD 2).Then, in #49, all interrupts are enabled, and in #50, the necessary information is displayed. Enters normal stop state.

FIG. 25 is a 70-chart showing a timer interrupt to the display microcomputer (DMC), and this timer interrupt is configured to interrupt every second. First, when a timer interrupt occurs, calendar calculation is performed in #51 based on the clock Plibv built in the display microcomputer (DMC), the calculated data is decoded in #52, and the liquid crystal display is displayed in #53. Drive circuit (LCDR)
This is output, the display is changed, and the process returns to the original step in #54.

Furthermore, FIG. 26 is a flowchart showing an interrupt for rewriting the display and an interrupt for imprinting a code on the film. First, when the input signal to the interrupt terminal (+nL+) of the display microcomputer (DMC) rises and an interrupt is generated, a timer interrupt (not shown in FIG. 25) is disabled in step #55.

Here, if a timer interrupt occurs after #55, it is stored in memory and is configured so that the interrupt is executed immediately after the timer interrupt is enabled. Then, data for display such as the count value of the film counter and the shooting mode are input to the input terminal (p
iD), the data and daily data are decoded in #57, and the decoded data is outputted to the liquid crystal drive circuit (LCDR,) in #58 to be displayed on the liquid crystal display device (LCDR). Change the display of LCD, ) (LCD2) and #5
At step 9, enable the timer interrupt and return to the original step.

On the other hand, the interrupt terminal (i) of the display microcontroller (DMC)
When the input signal to n t 2 ) rises and an interrupt is generated, the timer interrupt shown in Figure 1725 is disabled in #61, and the date print selection switch (S8) connected to the input terminal (pi+) is disabled in #62. Detect open/closed status. And this date print selection switch (S8)
If it is open and date printing is not selected, the process proceeds to #63, where the data corresponding to the code for prohibiting date printing is decoded, and the process proceeds to #65.

On the other hand, if the date print selection switch (S,) is closed in #62 and date printing is selected, the data corresponding to the date printed in #64 is decoded and the data is transferred to #65. Proceed.

In #65, the sensitivity of the loaded film is read from the input terminal (piDX) connected to the switch (CAS), and in #66, the exposure time of the hood (i.e., the light emitting diode) is determined according to the read film sensitivity. (32a)) is determined, and imprinting of the code is started in #67. Then, when the imprinting time determined in #68 is counted, the imprinting is finished in #69, and a progress timer interrupt is permitted in #59.

Next, we will introduce the configuration of the automatic printer included in the system of this embodiment, which automatically prints the film taken by the camera of this embodiment onto photographic paper.
It is shown in Figure 7. In Fig. 27, (LA) is a lamp for printing, (CF) is a color filter for color balance adjustment corresponding to the three primary colors of red, green, and blue, (EL) is a lens, and (LA) is a lamp. The light emitted from the film passes through a color filter (CF) and a lens (EL) and is irradiated onto the film (F) at the printing position. Then, the light transmitted through this film (F) is transmitted through the printing zoom lens (PL).
) is projected onto photographic paper (PP) and printed.

The configuration of this automatic printer will be explained below along with its operation.

First, (50) is a lamp control circuit that controls the lighting/extinguishing state of the lamp (LA). It is also used for reading imprinted codes, color balance, and metering for determining exposure.

Reference numeral (52) denotes a film conveying device that feeds the film photographed by the above-mentioned camera toward the carrier of the printer, and feeds the film (F) rightward in the figure. The density of the film being fed in the right direction is CC
It is monitored by the D line sensor or MO8 type line sensor (54), and this MO8 type line sensor (
Screen edge detection vcWl (54) inputs the output of
6), when it is detected that the density of the film being monitored has changed, the feeding of the film by the film transport device (52)i is stopped. That is, as shown in the time chart of FIG.
1 (56) Color film conveyor f? When the signal (a) input to j (52) falls, film advance is stopped and one frame of film is placed exactly at the position where it will be printed. Further, the film frames that have been printed are sequentially wound up by a film winding device (not shown).

Then, when the film feed is stopped, the code reading device (58) is activated by the signal (b) issued from the film transport device (52), and the film (F
) is read in the vicinity of the 7th frame at the printed position via the line sensor (60). That is, the code reading device fi(58)l2 reads each information of the photographing mode of the frame to be printed, whether or not to print the date, and the date to be printed. The shooting mode information read by the code reading device (58) is transmitted as a signal (c) to the printing zoom lens control device (62) which sets the printing magnification of the printing zoom lens (PL) and the photometry zoom lens. It is transmitted to the photometric zoom lens control device W1 (64), which sets the magnification of the lens (ML). And both zoom lenses (
For ML) (PL), the magnification is set according to the shooting mode information, and if cropping is specified at the time of shooting, the photometry range on the frame and the enlargement magnification on the photographic paper are determined according to the cropping size. It will be done. With this configuration, even if a mode that specifies cropping is set at the time of shooting, it is possible to accurately measure only the area to be printed, and it is possible to enlarge the image to the specified size regardless of the cropping size. can be printed.

When the magnification setting of the photometric zoom lens (ML) by the photometric zoom lens control device (64) is completed, a signal (d) indicating the completion is sent to the exposure calculation circuit (66).
Exposure calculation is performed according to the following. This exposure calculation calculates the light from the frame at the print position using the metering zoom lens (
The color balance and exposure amount according to the frame are calculated based on the output of the photometry circuit (68) which receives light through the ML. The color balance information calculated here is sent to the filter control device (70) as a signal (e).
is transmitted to and used for color balance adjustment, while
Information on the exposure amount is sent to the lamp control circuit (50) as a signal (f).
) and used to determine the amount of light emitted from the lamp (LA). Further, a signal (g) indicating the end of photometry is also transmitted from the exposure calculation circuit (66) to the lamp control circuit (50), and the lamp (LA) is temporarily turned off.

Next, the filter control device (70) sets a color filter (CF) according to the color balance information from the photometric circuit (68), and when this setting is completed, the filter control device (70) indicates that the filter setting is complete. Signal (11)
is emitted.

This signal (11) is transmitted to a lamp control circuit (50) and a shutter control device (72) that controls opening and closing of a shutter (PS) placed in front of the photographic paper (PP) at the printing position.
), and a date print control device (74) that controls whether or not to print the date on the screen of the photographic paper to be printed.
) respectively. Here, information regarding the date printed on the photographic paper is decoded from the code reading device (58) via the decoder (76) and input to the date print control device (74). ! ff1 (74) sets the year, month, and day of the date board (78) indicating the date to be printed according to this information.

Immediately after the signal (11) is input, the shutter control device (72) starts opening the shutter (ps), and the lamp control device (50) starts opening the shutter (PS) after this signal (11) is input. After a certain period of time until the lamp is fully opened, the lamp (LA) is turned on and printing is performed.
On the other hand, if date printing is selected by the code imprinted on the film, date printing control device W1 (
74), after the signal (]1) is input, Nyatta (P
After a certain period of time until the lamp (S) is fully opened, the lamp (
LD) to print the date. here,(
DL) is an 81-inch printing lens, and the date board (7
8) The date set in 8) is projected and printed on the screen of the stamp III paper by the date printing lens (DL') in 2. If date printing is not selected according to the code imprinted on the film, the lamp (LD) will not be lit.
Date is not printed.

Here, the lighting time of the lamp (LD) for printing the date is controlled by the date print control device (74) to be a constant time, and the lighting time of the lamp (L D ) for printing the date is controlled to be a constant time, and the lighting time of the lamp (L D ) for printing the date is controlled to be a fixed time. lamp (LD
) is set. On the other hand, the lamp for film printing (LA) is configured such that the lighting time and light intensity are controlled by a lamp control circuit (50) according to exposure amount information.

Then, when printing by the lamp (LA) is finished,
The lamp control circuit (50) outputs an exposure completion signal (j) after turning off the lamp (LA). In response to this exposure completion signal (j), the film transport device (52) starts feeding out the film, and the shutter control device (72)
causes the shutter (ps) to close.

Furthermore, in response to this exposure completion signal (j), the photographic paper transport device (80) sends out the photographic paper (PP) to the right in the figure.
Prepare for the next print. Also, this exposure completion signal (j)
According to the screen edge detection device (56), food reading bag ff
1 (58), the exposure calculation circuit (66), and the filter control device (70) are each reset to prepare for the next print. Then, the printed photographic paper is sequentially stored in a photographic paper storage device (not shown), and the printing process is performed.

Note that in the camera of this embodiment, the printed date is recorded on the film in the form of a code, so it is difficult to recognize the printed date even by looking at the film as it is. Particularly when using a reversal film that is rarely printed on photographic paper, even if a date is imprinted on the film with a hood, the date is of little use.

Therefore, in case a reversal film is used like this, a date imprinting device is built into the camera that imprints the date as a numerical value on the screen of the film as in the past. The date may be configured so that the date is imprinted on the film as a numerical value by this date imprinting device. Here, in order to determine whether a normal negative film is loaded or a universal film is loaded, it is sufficient to use film latitude information among the information recorded in the film cartridge. Therefore, the switch (C
Among the film sensitivity information input from AS), information regarding film latitude (for example, 'expos
If it is determined that the loaded film is a reversal film, a conventional date imprinting device that imprints the date on the film as a numerical value will be used. Alternatively, the date imprinting device may be manually selected depending on the film to be loaded.

Furthermore, since printing is not normally performed in the case of reversal film, it may be configured to prohibit switching to trimming mode when it is determined that reversal film is installed. In the camera of the embodiment, the trimming size can be changed to three types, and the minimum F value (maximum aperture aperture diameter) and maximum shutter speed are changed according to each trimming size. The invention is not limited to this, and may be configured to switch the minimum F value or maximum shutter speed depending on whether or not trimming is performed.Also, by changing such limit values, camera shake can be reduced. The configuration may be such that the value for issuing a warning such as a warning is switched depending on whether or not trimming is performed. Furthermore, in this embodiment, the flash was configured to fire automatically if proper exposure could not be obtained even when the shutter speed reached a limited maximum value. Alternatively, the light emitting part of the flash may be made to protrude from the camera body to encourage the use of the flash.

In addition, for cameras with automatic exposure control mode,
In the case of the aperture-priority automatic shutter speed control mode, which prioritizes the aperture over the set value, the set aperture value is limited depending on whether or not cropping is performed, and the program mode or program mode, in which the aperture is automatically controlled, In the case of the upstream shutter speed priority automatic aperture control mode, the calculated aperture value may be configured to be limited.

Furthermore, although the camera of this embodiment is configured so that the aperture and shutter speed change in a triangular shape, as shown in FIG. If this is done, the aperture may be limited by limiting the height of this trapezoidal shape.

Furthermore, although the automatic printer of this embodiment is configured to print data at the corners of the area where the subject is printed, the invention is not limited to this; The image may be configured to be printed in the white frame. Furthermore, if data is also printed within the area where the subject is printed, the color of the printed data may be changed to make it easier to distinguish the data. The configuration may be such that a position is searched and data is printed at that position. Then, the optical system for data printing is adjusted so that the position and size of the printed data are adjusted according to the print size, making it easier to check the printed data and affecting the printed subject. You may also choose not to have one.

Furthermore, the code to be imprinted on the film may be VTR&C so that it is imprinted as a magnetic code on a magnetic recording layer coated on the film. The data to be imprinted as a code is not limited to the date of photography as in the example;
It may be hour, minute, second data, photographic exposure data, serial number, etc.

Incidentally, in the automatic printer of this embodiment, the printing optical system and the photometric optical system were provided separately.
For example, a photometric light-receiving element may be placed above the shutter (PS) shown in FIG. 27, so that some of them may also be used.

In addition, in the above embodiment, the imprint data is configured to be imprinted outside the photographed screen, but the imprint data is not limited to this, but may be placed in a predetermined corner or near the bottom of one screen to be photographed. A shading means is provided to block light from the subject from entering the area, and the shading means is used only when trimming is selected or always.
It may be configured such that the imprint data is imprinted in the light-shielded area.

λ friend! As described in detail above, the printing apparatus according to the present invention has a trimming information system that reads trimming information related to trimming photography recorded on a film. l reading means; a photometering means for measuring the light of the film in order to determine the exposure value at the time of printing;
The present invention is characterized by having a photometric range setting means for setting the photometric range of the photometry means according to the read trimming information, and an enlargement magnification setting means for setting the enlargement magnification during printing according to the read trimming information. With this configuration, the photometry range and enlargement magnification of the photometer are set according to the trimming information, so only the area to be printed is always photometered, and the exposure value and color balance are determined based on the results. It is possible to always obtain prints with appropriate exposure values and color nozzles even when a trimming instruction is given.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a camera according to an embodiment of the present invention, Fig. 2 is a top view of the camera, Fig. 3 is a front view of the camera, and Fig. 4 is a view of the finder optical system and distance measuring optical system. 5 is a schematic diagram showing the trimming range, Figure 6 is a schematic diagram showing the display within the 7-eye field of view, and Figure 7 is the photographing range of the photographic lens and the photometry range of the photometry system. 8 and 9 are diagrams showing the display mode of the liquid crystal display device, FIG. 10 is a rear view of the camera with the back cover open, and FIG. 11 12 is an enlarged front view of the code imprinting unit seen from the rear, FIG. 12 is a vertical sectional view of the code imprinting unit, and
Figure 3 is a cross-sectional view of the code imprinting unit, No. 14.
The figure is a view from the back of the film with the code imprinted on it, Figure 15 is a diagram to explain the hood imprinted on the film, and Figure 16 is the electrical circuit diagram of the camera.
Fig. jS17 is a block diagram showing the configuration of the automatic focus adjustment circuit, Fig. 18 is a graph showing the relationship between the aperture diameter and aperture time of the shutter that also serves as the pattern, and the emission timing of the flash, and Fig. Pt5ls is its graph. A graph showing the relationship between the shooting mode and the exposure value when switching to 7-lash shooting, Figs. 20 and 21 are 70-charts showing the operation of the controlling microcomputer, and Fig. 22 shows the details of step #8. Showing 70-Chart, No. 23
The figures are schematic diagrams schematically showing the operation, Figures 24 and 25.
26 and 26 are flowcharts showing the operation of the display microcomputer, FIG. 27 is a block diagram showing the automatic printer of the system of this embodiment, and FIG. 28 is a time chart showing the operation. (60); Trimming information reading means (ML>(68); Photometry means (64); Photometry range setting means (62); Enlargement magnification setting means and above Applicant: Minolta Camera Co., Ltd. Figure 1 Figure 2 Figure 6 7 Figure 8 Figure 2 DA FE Figure 16 Figure 1 Atsushi 15 Figure 30 60 125 250!!;0σ 1
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``Kaisei 31 yo 7 U V Start〉・、expense し＊St〉n 阯33゜口“S さを! ! @ FF 1 Tsukasa Hitomi A Kamijishekaku 2z Details of Figure 8 Figure 6 Figure 27 DMC Brooch Mart Figure

Claims (1)

[Scope of Claims] 1. Trimming information reading means for reading trimming information related to trimming photography recorded on film; photometering means for metering the film to determine the exposure value at the time of printing; A printing apparatus comprising: a photometry range setting means for setting a photometry range of a photometry means according to the read trimming information; and an enlargement magnification setting means for setting an enlargement magnification during printing according to the read trimming information. 2. The photometry means includes a light reception means for receiving light from the film, and a photometry zoom lens placed in front of the light reception means so as to guide the light from the film to the light reception means, and the photometry range setting means includes trimming information. 2. The printing apparatus according to claim 1, further comprising a zooming means for changing the magnification of the photometric zoom lens in accordance with the photometric zoom lens. 3. The printing apparatus according to claim 2, wherein the photometric range setting means comprises a photometric range switching means that changes the magnification of the photometric zoom lens stepwise in accordance with the trimming information.