JPH07281271A - Camera provided with aptitude and non-aptitude display means - Google Patents

Abstract

PURPOSE:To enable a user to rapidly and exactly confirm information on the AF and the AE of a subject on an electronic view finder. CONSTITUTION:The picture of the subject in accordance with output from an imaging device 9 is displayed on a monitor 24, and exposure information and focusing information are obtained by a control circuit 37 based on the output from the imaging device 9. Then, a signal synthesis circuit 22 outputs a signal for displaying aptitude and non-aptitude about at least either exposure or a focusing state by dividing in every area on the monitor 24 based on the output from the control circuit 37. Such dividing display is performed by coloring any area showing the aptitude or the non-aptitude on the monitor 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera using an image pickup device for confirming a subject image, and more particularly to a camera having an aptitude / appropriate display means for indicating a situation such as AE or AF.

[0002]

2. Description of the Related Art Conventionally, it has been desired that information about AE and AF of a subject be displayed on an electronic viewfinder and shown to a user. For example, Japanese Patent Application Laid-Open No. 63-260638 discloses a technique in which an edge signal in a region predicted to be blurred from subject distance information and luminance information is reduced to make it appear equivalently blurred.

Further, Japanese Patent Application Laid-Open No. 61-39009 discloses a technique in an automatic tracking device for moving a target mark in association with a target which is being automatically tracked.

[0004]

However, in the technique disclosed in Japanese Patent Laid-Open No. 63-260638, there is no blur on the image pickup element, and therefore it is only a simulation and not accurate. Further, the above-mentioned JP-A-61-3900
In the technique disclosed in Japanese Patent No. 9, the target that is in focus can be known, but the range of which screen and which range is in focus cannot be known.

The present invention has been made in view of the above problems, and it is an object of the present invention to allow a user to quickly and accurately confirm information on AF and AE of an object on an electronic viewfinder. is there.

[0006]

In order to achieve the above object, a camera having an aptitude / inappropriate display means according to the first aspect of the present invention is provided with an exposure amount control means, a focusing means, and an image pickup device. In a camera having, a monitor means for displaying an image according to the output of the image pickup device, a calculating means for obtaining at least one of exposure amount information and focus information based on the output of the image pickup device, and based on the output of the calculating means. And a display signal output means for outputting a signal for displaying the suitability / inappropriateness of at least one of the exposure amount and the in-focus state on the monitor means in a divided manner for each area.

In the camera having the aptitude / appropriate display means according to the second aspect, the display signal output means outputs the signal for coloring the appropriate or unsuitable area on the monitor means to the image pickup device. It is characterized by having a signal synthesizing means for synthesizing.

Further, the camera having the aptitude / inappropriate display means according to the third aspect has an exposure amount control means, a focusing means, and a camera having an image pickup device, and displays an image according to the output of the image pickup device. Monitor means for displaying, computing means for obtaining at least one of exposure amount information and focusing information based on the output of the image pickup device, and suitability / inappropriation of at least one of exposure amount and focusing state based on the output of the computing means. It is characterized by further comprising display signal output means for outputting a signal for displaying on the monitor means in a divided manner for each area, and recording means for recording information of the signal output means on a film.

[0009]

That is, in the camera having the suitability / appropriate display means according to the first aspect of the present invention, the monitor means displays an image according to the output of the image pickup device, and the calculation means exposes based on the output of the image pickup device. At least one of the amount information and the focus information is obtained. Then, the display signal output means outputs a signal for displaying the suitability / inappropriateness of at least one of the exposure amount and the in-focus state on the monitor means in a divided manner for each area based on the output of the calculation means.

Further, in the camera having the aptitude / appropriate display means according to the second aspect, the signal synthesizing means of the display signal output means is a signal for coloring an appropriate or unsuitable area on the monitor means. Is combined with the image sensor output.

Further, in the camera having the aptitude / appropriate display means according to the third aspect, the monitor means displays an image according to the output of the image pickup device, and the calculation means displays the exposure amount information based on the output of the image pickup device. , At least one of the focus information. Then, the display signal output means outputs a signal for displaying the suitability / inappropriateness of at least one of the exposure amount and the in-focus state on the monitor means in a divided manner for each area based on the output of the calculation means. Further, the recording means records the information of the signal output means on a film.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 1 shows the structure of a camera having an aptitude / inappropriate display means according to the first embodiment of the present invention and will be described.

As shown in FIG. 1, on the optical path of the subject light, there are arranged two-group zoom lenses 1 and 2 consisting of concave and convex lens groups, a diaphragm 3 and a half mirror 6, which are reflected by the half mirror 6. A mirror 7 is arranged on the optical path of the reflected light, and an imaging lens 8 and an image pickup element 9 are arranged on the optical path of the light reflected by the mirror 7. The diaphragm 3 is arranged between the zoom lens 1 and the sume lens 2.

On the other hand, a focal plane type shutter 4 and a film 5 are arranged on the optical path of the light transmitted through the half mirror 6. Therefore, of the light passing through the zoom lenses 1 and 2, approximately half is transmitted to the film 5 side, and the other half is reflected upward. Then, the subject image forms an aerial image at a position approximately the same as the film 5, is reflected by the mirror 7, and is imaged on the image sensor 9 by the imaging lens 8.

The size of the image area of the image pickup device 9 is smaller than the screen size of the film 5 as a whole due to the insertion of the imaging lens 8.
Further, the image pickup device 9 includes a light receiving part having several hundreds of thousands of pixels and a charge coupled device (CCD; Charge Co) for transferring charges generated by the received light.
upled Device). Then, R is
A GB color filter is formed on each pixel in a predetermined pattern.

Further, the output of the image pickup device 9 is connected to the input of a preamplifier 10, and the output of the preamplifier 10 is an FM modulation circuit via a signal processing circuit 11, a luminance signal processing circuit 12 and a color signal processing circuit 13. It is connected to 14 inputs. The output signal of the image sensor 9 is the preamplifier 1
The signal processing circuit 12 and the color signal processing circuit 13 are amplified by 0.
After being subjected to a predetermined process in step 1, the FM modulation circuit 14 combines the signals into one signal.

The output of the luminance signal processing circuit 12 is connected to the inputs of the AE arithmetic circuit 15 and the AE division arithmetic circuit 16, and the output of the AE division arithmetic circuit 16 is connected to the input of the AE address storage circuit 17. Has been done. The AE arithmetic circuit 15 averages the luminance signals for each pixel over the entire screen to calculate how much the film 5 should be exposed.

Then, the AE division arithmetic circuit 16 divides the screen into a plurality of areas, calculates an appropriate exposure amount for each of the divided areas, and calculates the appropriate exposure amount as an averaged exposure amount of the entire screen in each area. When there is a difference of a predetermined value or more as compared with the appropriate exposure amount for each, the address of the area is stored in the AE address storage circuit 17.

Further, the output of the luminance signal processing circuit 12 is also connected to the input of the frequency division circuit 18, and the output of the frequency division circuit 18 is also connected to the input of the AE arithmetic circuit 19. The output of the AE calculation circuit 19 is connected to the inputs of the lens control circuit 28 and the AF address recording circuit 21. Then, the AF division calculation circuit 2
The output of 0 is connected to the input of the AF address storage circuit 21. The lens control circuit 28 drives the lens 1 for focusing based on the output of the AF calculation circuit 19.

By the frequency division circuit 18, of the luminance signals of the image pickup device 9, a signal in a predetermined frequency band is A
It is transmitted to the F operation circuit 19. Then, the AF calculation circuit 1
Reference numeral 9 is a so-called hill-climbing method, and searches for a portion where the contrast signal of the entire screen is largest and performs focusing. Further, the AF division calculation circuit 20 divides the screen into a plurality of areas, and calculates the largest portion of the contrast signal for each of the divided areas. Then, the AF address storage circuit 21
When the averaged focusing position of the entire screen and the contrast signal maximum position of each area are compared and there is a difference of a predetermined value or more, the address of the area is stored.

On the other hand, the outputs of the FM modulation circuit 14, the AE address storage circuit 17, and the AF address recording circuit 21 are connected to the input of the signal synthesis circuit 22. Then, the signal synthesizing circuit 22 normally obtains a subject image by driving the monitor 24 with the output itself of the FM modulating circuit 14, but overexposure or underexposure of a specific area from the AE / AF address storage circuits 17 and 21. Alternatively, when the display outside the depth of focus is desired, the signals are combined so that only the designated address area is colored and displayed.

The output of the signal synthesizing circuit 22 is connected to the input of the CCD monitor 24 via a monitor driving circuit 23 for driving each pixel of the CCD monitor 24. Further, the output of the signal synthesizing circuit 22 is connected to the input of the memory 26 via the A / D conversion circuit. The A / D conversion circuit 25 A / D converts the subject image signal from the FM modulation circuit 14, and the memory 26 stores the digital signal.

The output of the memory 26 is connected to the input of the signal synthesizing circuit 22 via the D / A converting circuit 27. Then, the D / A conversion circuit 27 converts the digital signal stored in the memory 26 into an analog signal again and outputs it to the signal synthesis circuit 22.

A lens position encoder 29 for outputting the position information is connected to the zoom lens 1, and the output of the lens position encoder 29 is connected to the inputs of the AE calculation circuit 18 and the AF division calculation branch 20. Has been done.

Further, the diaphragm 3 has a diaphragm control circuit 30.
, A shutter control circuit 31 is connected to the shutter 4, and an AE calculation circuit 15 and an A address E recording circuit 17 are connected to the aperture control circuit 30 and the shutter control circuit 31. . Then, the diaphragm control circuit 30 and the shutter control circuit 31 respectively control the diaphragm 3 and the shutter 4 based on the output of the AE calculation circuit 15.

A zoom circuit 32 for changing the focal length of the zoom lenses 1 and 2 is connected, and the film 5 has a film feeding circuit 33 and information necessary for the film magnetic recording Px. Is connected to the magnetic recording circuit 34 for recording. Further, the cartridge 35 is connected to a cartridge code reading circuit 36 for reading the code on the exterior of the cartridge.

Further, the control circuit 37 is connected to an operation unit 38 for the user to input information using various switches, and the output of the control circuit 37 is the aperture control circuit 30, the zoom circuit 32, and Shutter control circuit 31, film feeding circuit 33, magnetic recording circuit 34, cartridge code reading circuit 36, memory 26, signal synthesizing circuit 22, AF
Arithmetic circuit 19, AE arithmetic circuit 15, AE division arithmetic circuit 1
6 inputs. The system is controlled by the control circuit 37 in addition to the above-mentioned units.

Here, FIG. 2 shows a state in which a subject image is formed on the film 5 and the image pickup device 9 through an optical system and will be described. In FIG. 2, the zoom lenses 1 and 2 are collectively shown as one convex lens.

In FIG. 2, the image magnification of the object on the surface of the film 5 is represented by β1 = l1 / l0 as the ratio of the object distance l0 and the distance l1 from the lens principal point to the film. The light flux reflected by the half mirror 6 forms an aerial image at a position that is approximately the same as the film surface. Further, the aerial image is further reduced and formed on the image sensor 9 by the lens 8 for the image sensor. The ratio is the ratio l3 / l2 between the distance l2 from the common image of the aerial image to the principal point of the lens 8 and the distance l3 from the principal point to the image sensor.

Further, the ratio of the screen size of the image sensor to the film screen size is l3 / l2 times, and the image magnification β2 on the image sensor 9 using the image sensor 9 smaller than the film screen is expressed by the following equation.

[0031]

[Equation 1]

A field lens is arranged at a position where an aerial image can be formed. This is to prevent a part of the light flux of the aerial image from being blocked by the imaging element lens 8.
The operation of the first embodiment will be described below with reference to the flowchart of FIG. Turn on the power switch (not shown)
Then, the monitor 24 is turned on and the subject image on the image sensor 9 is displayed on the monitor 24 (step S1).

Then, the release button is pressed almost halfway
When the t-release signal is output (step S2), the AE arithmetic circuit 15 obtains the output of the luminance signal processing circuit 12 which is the output of the luminance signal processing circuit 12 among all the outputs of the image sensor 9, Calculate the average value (step S
3).

Then, the AF arithmetic circuit 19 drives the lens control circuit 28 to scan the lens 1 for focusing, detects the contrast signal over all pixels, and positions the lens 1 at the maximum position. It is stopped (step S4). The contrast signal is obtained by adding the absolute values of the output differences of adjacent pixels. If this is shown by the formula,

[0035]

[Equation 2] Becomes This ΔV is a contrast signal, and the position where the ΔV becomes maximum is the position where the entire screen is in focus.

When the lens driving is completed in this way, the AE division arithmetic circuit 16 obtains the luminance signal over a plurality of regions,
These values are compared with the average brightness of the entire image sensor 9 obtained by the AE calculation circuit 15 (step S5). There is no problem if this difference is within the latitude of the film 5, but if it is larger than that, it is displayed that the area is over or under. The contents of this display are that, when over / under is determined for each area, the address is stored in the AE address recording circuit 17, and the image signal of the subject image, that is, the output of the FM modulation circuit 14 and the address signal thereof are signaled. This is performed by the synthesizing circuit 22 synthesizing and coloring only the over / under region and displaying it on the monitor 24 (step S6).

This state is as shown in FIG. In FIG. 4, the screen is divided into 16 regions, and the luminance signal of each region is shown by hatching the region of ± 1 EV or more with respect to the average value BVAV = 10.2.

Next, the camera executes an operation so as to display the same for AF. That is, when the lens 1 is scanned while the calculation of the formula (2) is performed over the entire screen, the contrast signal becomes a hill-climbing type signal as shown in FIG.

For the entire focusing, if the lens is set at a position where the contrast signal ΔV is maximum, a proper focusing photograph can be taken. At the time of this lens scan, a mountain climbing signal can be obtained for each region by performing the same calculation in a plurality of divided regions separately from the entire calculation, and the lens of the peak of each region and the overall peak can be obtained. If the difference between the outputs of the position encoder 29 is small, the area falls within the depth of focus, and if the difference is large, the area becomes a blurred photograph.

At the boundary AA ', the aperture value of the lens at that brightness is F, the permissible circle of confusion diameter on the film is δ, and the longitudinal magnification of the lens 1 with respect to the film surface is β ² (lens 1 is 1 mm. When moved, the subject image is 1 on the film surface.
× β ² mm), and ± F × δ / β ² from the focus point O. Therefore, the difference between the overall peak and the peak in each region is Fδ
Focusing is achieved at i = 1, 2, 4, 5 in / β ² , but blurring occurs at i = 3, 6. In this embodiment, the address of i = 3, 6 is set to the AF address storage circuit 2
1 is stored, and the area is colored and displayed by the signal synthesis circuit 22.

This state is as shown in FIG. In the figure, the one within the depth of focus is shown by hatching. In this way, the 16-division display and the subdivision with it (see FIG. 6B) can be expressed as if the person itself is displayed in color (see FIG. 6C). A as above
If the over / under of F or the AF depth is displayed and it is not what the user desires, the composition and aperture are changed, but the release button is pressed completely and 2
When the nd release signal is output, it is recorded on the memory 26 at the same time as the film 5 is exposed, so that the shooting condition can be confirmed later. Then, after these processes, the film is fed by one frame.

Next, FIG. 7 is a flow chart showing a sequence of AE over / under display. In this sequence, the luminance signal is added for each pixel and divided by the number of pixels n to obtain the average luminance BVAV (step S2).
1 to S29).

Then, the latitude ΔBV of film 5
It is determined whether the brightness of each pixel exceeds BVAV + ΔBV from the above, and if it exceeds, the address i is stored. Further, it is judged from the latitude ΔBV of the film 5 whether the luminance of each pixel is smaller than BVAV−ΔBV, and if smaller, the address i is stored (steps S30 to S36). In this way, the signal synthesizing circuit 22 operates with respect to the stored address, and the image on the monitor 24 is colored only in the above-mentioned area to display over / under (steps S37 and S38).

Next, FIG. 8 is a flowchart of AF lens control. Here, the following description will be made assuming that the entire screen is divided into n areas. First, all the contrast reference signals ΔViref (i = 1 to n) are cleared (steps S41 to S44). Subsequently, the lens is reset and then a minute predetermined amount is extended (steps S45 and S46).

Then, the contrast signal ΔV for each area
i is calculated and the contrast signal ΔVi is compared with the contrast reference signal ΔViref. If the contrast signal .DELTA.Vi is larger, the contrast signal .DELTA.Vi is stored instead of the contrast reference signal .DELTA.Viref and the contrast signal in the next area is detected. By repeating this process, the contrast signal ΔVi becomes the contrast reference signal ΔVi.
When it becomes smaller than Viref, the average contrast signal has exceeded the peak of hill climbing, and therefore the output of the encoder is stored in the address storage circuit 21 at that time (steps S48 to S55).

When this operation is repeated, one peak encoder output value is stored for each area (n in total). When the average of the n encoders is calculated, it becomes the peak of the average contrast in the entire screen, and the best focus position for the entire screen is obtained by extending the lens there (steps S56 to S56).
59).

Next, FIG. 9 is a flowchart showing a sequence of depth display based on n encoder values. First,
F · δ / β ² (allowable defocus amount) is obtained, and the result shown in FIG.
Calculating a ± F · δ / β ² with respect to in the determined focus position (step S61,62). When the encoder value of each area is larger than ENMAX or smaller than ENMIN, the address (i) is stored and the signal synthesis circuit 2
2 (steps S63 to S69). Then, the signal synthesizing circuit 22 synthesizes the subject image and the address signal to color the area inside or outside the depth of the entire screen and displays it on the monitor 24 (steps S70 and S71).

Next, FIG. 10 is a flow chart showing a sequence of AE over / under display when a strobe is used. In this sequence, the subject distance is calculated from the output of the lens position encoder 29, and it is determined whether or not each area is within the range (× 1.4 times, × 0.7 times) of ± 1 EV of that. If it is not within the above range, over / under display is performed on the LCD monitor 24 (steps S81 to S92).

Next, FIG. 11 is a flow chart showing the operation according to the second embodiment. When the over / under of the AE is recognized, the area and the over / under amount are recorded in the magnetic recording portion of the film 5 (step S1).
01-S105). Since various configurations of this recording means are already known, the details will be omitted. In the second embodiment, when printing is performed by a digital printer at a photo lab, the information can be read and exposure correction can be applied.

Next, FIG. 12 is a diagram showing a camera having an aptitude / appropriate display means according to the third embodiment. The third embodiment is different from the above-mentioned embodiment in that the focus detection system is changed from the "peak detection of hill climbing, that is, the contrast method" to a known triangulation method. That is, in the third embodiment, a lens system 39 for distance measurement is provided separately from the taking lens, and the subject light flux from the taking lens system 1 and the subject light flux from the lens system 39 are both image pickup elements 9. It is designed to be guided to.

Here, the image pickup device 9 is divided into n regions for each of the part receiving the subject light from the photographing lens system and the part receiving the subject light from the lens system 39, and as known between these two parts. By obtaining the distance between the two images on the image sensor 9, the absolute subject distance can be obtained for each of the n areas. This is X = S as shown in FIG.
It can be calculated from xf / l.

As described above in detail, in the camera having the aptitude / appropriate display means of the present invention, the information on AF and AE can be calculated from the image signal of the image pickup device 9 and displayed on the monitor 24. it can. Therefore, the user can confirm the contents of AF and AE by the display on the monitor without performing a complicated operation.

According to the embodiment of the present invention, the following embodiments can be obtained. (1) In a camera having an exposure amount control means, a focusing means, an image sensor, and a monitor means for electronically displaying a subject image based on the image sensor output, the exposure is performed based on the image sensor output. A calculation means for obtaining at least one of the amount information and the focus information, and based on the output of the calculation means, the suitability / ineligibility of at least one of the exposure amount and the focus state is displayed on the monitor means separately for each area. And a display signal output means for outputting the signal of 1., and a camera having an aptitude / appropriate display means. (2) In the above (1), the display signal output means outputs a signal capable of displaying aptitude / inappropriateness for each small area obtained by dividing the screen on the monitor means into a plurality of small sections. (3) In the above (1), the display signal output means outputs a signal such that one of the aptitude area and the aptitude area is displayed on the monitor means differently from the other. (4) In the above (1), the computing means obtains the exposure amount information and / or the focusing information based on the average value of all screen outputs of the image sensor, and the exposure amount information for each small section of the image sensor. And / or division calculation means for obtaining focus information. (5) In (1) above, the suitability / ineligibility of the exposure dormitory is that the exposure amount is over or under. (6) In the above item (1), the suitability and unsuitability of the in-focus state are in-focus and out-of-focus. (7) In the above (1), the suitability and unsuitability of the in-focus state is whether or not the subject is within the depth of field. (8) In a camera having an exposure amount control means, a focusing device, and an image sensor, a display drive means for displaying an image corresponding to the image sensor output on a monitor means, and a full screen output of the image sensor. First calculation means for obtaining exposure amount information and focus information based on the second calculation means, and second calculation means for obtaining exposure amount information and focus information for each small region based on the output of each small region of the image pickup device.
A calculating means, a difference between the output of the first calculating means and an output of the second calculating means is obtained for each of the small areas, and when the difference is equal to or more than a predetermined amount, the position of the small area is stored, and the storing means. And a signal synthesizing unit for synthesizing a signal output from the unit to the display driving unit. (9) In a camera having an exposure amount control means, a focusing device, and an image sensor, a display drive means for displaying an image corresponding to the image sensor output on a monitor means, and a full-screen output of the image sensor. First computing means for obtaining exposure amount information and focus information based on the above, and second computing means for obtaining exposure amount information and focus information for each small region based on the output for each small region of the image sensor. And a comparing means for obtaining the difference between the output of the first calculating means and the output of the second calculating means for each of the small areas, and a storing means for storing the position of the corresponding small area when the output of the comparing means is equal to or more than a predetermined amount. And a signal synthesizing unit for synthesizing the signal of the storage unit with the display driving unit. (10) A first optical system and a second optical system, an image pickup device arranged behind these first and second optical systems, and an object image is electronically displayed based on the output of the image pickup device. A monitor means, a computing means for obtaining focusing information based on the output of the image pickup device, and a signal for displaying the focusing / non-focusing for each region of the subject on the monitoring means based on the computing means output. And a means for doing so. (11) In a camera having an exposure amount control means, a focusing device, and an image pickup device and using a film with a magnetic recording portion, a display drive means for displaying an image according to the output of the image pickup device on a monitor means. And first computing means for obtaining the exposure amount information and the focus information based on the full-screen output of the image sensor, and the exposure information and focus for each small area based on the output of the image sensor for each small area. Second calculating means for obtaining the information, comparing means for obtaining the difference between the output of the first calculating means and the output of the second calculating means for each of the small areas, and a corresponding small output when the output of the comparing means is equal to or more than a predetermined amount. Storage means for storing the position of the area, signal combining means for combining the output signal of the storage means with the display driving means, and recording means for recording a signal corresponding to the output of the comparison means in the magnetic recording portion of the film, It is characterized by having Camera that. (12) A first optical system that guides the subject light flux to the photographic film and a second optical system that is different from the first optical system and that guides the subject light flux to the image sensor. A half mirror that is interposed between the first optical system and the photographic film and guides a part of the light flux of the subject to the image pickup device, and monitor means that electronically displays the subject image based on the output of the image pickup device. And a calculation means for obtaining at least one of focus information and exposure amount information based on the output of the image pickup device, and a focus / non-focus state and an appropriate exposure state for each small area of the subject based on the output of the calculation means. A means for outputting a signal for displaying at least one of the above on the monitor means, and a recording means for recording a signal corresponding to at least one of the focus information and the exposure information on the photographic film. Characteristic camera.

[0054]

According to the present invention, it is possible to provide a camera having an aptitude / inappropriate display means which enables a user to quickly and accurately confirm information on AF and AE of a subject on an electronic viewfinder. You can

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a camera having an aptitude / appropriate display means according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a state in which a subject image is formed on a film 5 and an image sensor 9 via an optical system.

FIG. 3 is a flowchart showing the operation of the first embodiment.

FIG. 4 is a diagram showing a state in which only an over / under area is colored and displayed on a monitor.

FIG. 5 is a diagram showing a relationship between a lens position encoder output and a contrast signal.

FIG. 6 is a diagram showing a state of screen display in which display within depth and display outside depth are separated.

FIG. 7 is a flowchart showing details regarding AE over / under display.

FIG. 8 is a flowchart of AF lens control.

FIG. 9 is a flowchart showing a sequence of performing depth display based on n encoder values.

FIG. 10 is a flowchart showing a sequence for performing AE over / under display when using a flash.

FIG. 11 is a flowchart showing an operation of a camera having an aptitude / appropriate display means according to the second embodiment.

FIG. 12 is a diagram showing a camera having an aptitude / appropriate display means according to a third embodiment.

13 is a diagram showing in detail a part of an optical system of a camera having the suitability / inappropriateness display means shown in FIG.

[Explanation of symbols]

1, 2 ... Zoom lens, 3 ... Aperture, 4 ... Shutter, 5 ...
Film, 6 ... Half mirror, 7 ... Mirror, 8 ... Imaging lens, 9 ... Imaging element, 10 ... Preamplifier, 11 ... Signal processing circuit, 12 ... Luminance signal processing circuit, 13 ... Color signal processing circuit, 14 ... FM modulation Circuit, 15 ... AE arithmetic circuit, 16 ...
AE division arithmetic circuit, 17 ... AE address storage circuit, 18
... Frequency division circuit, 19 ... AE arithmetic circuit, 20 ... AF division arithmetic circuit, 21 ... AF address recording circuit, 22 ... Signal combining circuit, 23 ... Monitor drive circuit, 24 ... Monitor, 25
... A / D conversion circuit, 26 ... Memory, 27 ... D / A conversion circuit, 28 ... Lens control circuit, 30 ... Aperture control circuit, 31
... Shutter control circuit, 32 ... Zoom circuit, 33 ... Film feeding circuit, 34 ... Magnetic recording circuit, 35 ... Patrone,
36 ... Patrone code reading circuit, 37 ... Control circuit, 3
8 ... Operation part.

Claims (3)

[Claims] 1. A camera having an exposure amount control means, a focusing means, and an image sensor, a monitor means for displaying an image according to the output of the image sensor, and exposure amount information based on the output of the image sensor, Based on the calculation means for obtaining at least one of the focus information and the above-mentioned calculation means output, a signal for displaying the suitability / inappropriateness of at least one of the exposure amount and the focus state on the monitor means in a divided manner for each area A camera having an aptitude / appropriate display means, comprising: a display signal output means for outputting. 2. The display signal output means includes signal synthesizing means for synthesizing a signal for coloring an appropriate or unsuitable area on the monitor means with an output of the image pickup device. A camera having the suitability / non-suitability display means according to Item 1. 3. A camera having an exposure amount control means, a focusing means, and an image sensor, a monitor means for displaying an image according to the output of the image sensor, and exposure amount information based on the output of the image sensor, Based on the calculation means for obtaining at least one of the focus information and the above-mentioned calculation means output, a signal for displaying the suitability / inappropriateness of at least one of the exposure amount and the focus state on the monitor means in a divided manner for each area A camera having an aptitude / appropriate display means, comprising: a display signal output means for outputting; and a recording means for recording information of the signal output means on a film.