JPH0719025B2 - Camera display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention provides a field luminance distribution and a main subject luminance in flash light photography in a camera capable of multi-division photometry,
The present invention relates to a display device of a camera that displays in association with an exposure control value.

[Conventional technology]

In cameras equipped with an automatic exposure control mechanism, the exposure control value is determined by measuring the brightness of the field, but under special shooting conditions, for example, when shooting against the sun or shooting in a snowfield. When a person is photographed under a very bright background, the amount of exposure is affected by the brightness of the background, and the person is underexposed, resulting in a black image.

For this reason, the photographer of the advanced class predicts the finish of the photograph from the brightness distribution of the field and the exposure control value based on experience,
You are changing the exposure control value or performing exposure compensation (override).

In such a case, if the relationship between the brightness of each of the background portion and the main subject and the exposure control value is known, it is possible to perform exposure correction that matches the shooting intention.

For this purpose, a step difference between the exposure control value such as the shutter speed and aperture value that controls the exposure of the camera and the exposure value based on the spot photometric value is displayed in a dot display and the relationship with the film murachitide is displayed. It is known to display even. (See, for example, JP-A-57-120924).

[Problems to be solved by the invention]

Even in a camera equipped with a display device such as the one described above, in the case of flash light photography, it is possible to determine whether flash light dimming is possible while taking into account the guide number of the flash light emitter, the shooting aperture value, and the distance to the main subject. I had to judge. In addition, recognizing the contrast between the background and the main subject in flash photography, and changing the exposure control value to obtain an image that matches the shooting intention require a lot of experience and technology. There is also a long-felt need for displaying information that can predict the finish of an image reproduced on a film, which is how the main subject is expressed in the background even in the case of shooting.

[Means for Solving the Problems]

This invention is to solve the above-mentioned problems, and divides the object field into a plurality of areas to measure the brightness of each area, and a distance information output means for outputting distance information to the main subject, An exposure control value output means for outputting an exposure control value for flash photography, and a density distribution in which subjects in a plurality of regions are reproduced on the film based on the output of the photometric means and the output from the exposure control value output means. And a second calculation means for calculating the density at which the main subject is reproduced on the film by the flash light, based on the output from at least the distance information output means, and the exposure control value output. And an exposure control value and a density distribution reproduced on the film of the subject in a plurality of divided areas based on the outputs from the means and the first and second calculating means. A display unit for displaying the density reproduced on the film of the main subject on the same display unit as the density distribution of the subject of the plurality of regions in a display mode different from the display of the concentration distribution of the subject of the plurality of regions; It is characterized by having.

[Action]

The display means displays the exposure control value based on the outputs from the exposure control value output means and the first and second calculating means, and the density distribution reproduced on the film of the subject in the plurality of divided areas. At the same time, the density reproduced on the film of the main object when performing flash light photography is the same as the density distribution of the objects of the plurality of areas on the same display unit, and the display of the density distribution of the objects of the plurality of areas is displayed. It is displayed in different display modes.

As a result, it is possible to concretely and visually confirm the state of contrast between the main subject and the background portion of the image reproduced on the film when performing flash light photography.

〔Example〕

 Examples of the present invention will be described below.

FIG. 1 shows an example of the arrangement of the light receiving elements in the photometric section of a camera equipped with the display device of the present invention. The field of view is divided into five parts, and five light receiving parts SPC1 to SPC5 are received. The elements are arranged. AF range detection range AF
Are included in the region of the light receiving element SPC1.

FIG. 2 shows an embodiment of an in-finder display section 10 in which the display device of the present invention is incorporated in a finder. In the figure, reference numeral 11 denotes a charging completion display portion of the flash light emitting device, which is in an off state before completion of charging and is in a blinking state upon completion of charging. Reference numeral 12 is a shutter speed display portion, and 13 is an aperture value display portion, which are displayed by numbers. 14 is an exposure compensation (override) display section that is off when there is no exposure compensation, the right display section blinks during overexposure compensation, and the left display section blinks during underexposure compensation.

Reference numeral 18 is an index indicating the target exposure value when the exposure is performed at the exposure control value displayed on the shutter speed display section 12 and the aperture value display section 13. Reference numeral 19 denotes an exposure value EV display unit obtained by adding the film sensitivity SV, the lens open aperture value AV _0, etc. to the output of the light receiving element of the photometry unit, and a plurality of display elements, 21 in this embodiment. Are arranged, and one of the display elements is lit and displayed according to the value of the exposure value EV. Of these display elements, proper exposure (intermediate density in the film) is obtained when the display element 19 at the position of the target exposure value index 18 described above is turned on. In addition, when the display element at a position apart from the target exposure value index 18 of the display element 19 is turned on, a scale 16 for displaying the number of steps of overexposure or underexposure corresponding to this display element is displayed.
It indicates that the exposure is overexposed (the density is low in the positive film) or underexposed (the density is high in the positive film) by the number of steps.

Reference numeral 17 is an index indicating the range of exposure values that fall within the film unevenness when exposed at the exposure control values displayed on the shutter speed display section 12 and the aperture value display section 13.

15 and 20 are display elements that blink when the exposure value obtained from the photometric value is overexposure or underexposure by +5 steps or -5 steps from the target exposure value by the actual exposure control value. is there. This is the display element 19
It warns that there is an exposure value obtained from the metering output that is outside the range of the exposure value displayed in.
When 0 flashes, simply overexposure ± 5 steps,
Alternatively, it is not underexposed but indicates that it is more than that.

Next, a display example will be described.

FIG. 3 shows the case of the aperture priority mode, in which the aperture value is 5.6.
When the subject is set to and multi-divisional photometry is performed, the shutter speed becomes 1/250 seconds.

In FIG. 3 (a), 250 is displayed on the shutter speed display section 12 and 5.6 is displayed on the aperture display section 13. Also, the maximum exposure value EVmax obtained from the photometric values obtained by dividing the field And the minimum value EVmin are displayed on the display unit 19, and the high brightness portion EVmax
Is one step over target exposure value, EV in low brightness area
min is 2.5 steps under, and the exposure value for the main subject, which is the exposure value obtained from the photometry value in the center of the scene during split metering, but it is 1.5 steps under . In other words, the entire scene is contained within the film unevenness, but the exposure value set by the automatic exposure control mechanism (AE) is affected by the high-brightness part of the scene and the main subject is slightly exposed. It shows that it has become a little under.

Therefore, in this case, the exposure value is corrected and the exposure value is corrected, for example, the shutter speed is reduced to 1/90 seconds, and the exposure value of the main subject is the target exposure value index as shown in FIG. 3 (b). Proper exposure can be given to the main subject by setting it to match 18.

The above example is for the aperture priority mode, but the same is true for the shutter speed priority mode and the program mode. Furthermore, in the manual exposure mode, the shutter speed and aperture value settings must be changed. Thus, it is possible to give proper exposure to the main subject in the same manner as above.

Next, the case of flash photography will be described. FIG. 4 (a) shows a state in which the main subject in the center of the subject field is underexposed due to the influence of the high-intensity portion in the subject field in the surrounding background. For example, in the case of backlight shooting, the above situation occurs, and when the main subject is within the dimmable range by flash light, the flash light is applied to the subject during daytime synchronized shooting, and the main subject is adjusted appropriately. You can shoot with exposure.

For example, FIG. 4 (b) shows a state in which the flash light emitter is fully charged and the display 11 is turned on under the same conditions as in FIG. 4 (a). Here, in the case of the aperture priority mode, the aperture value remains 5.6 and the shutter speed is 1/250 seconds which is the maximum speed synchronized with the X contact. Because the exposure control value moved to the two-step over side for flash photography,
The exposure value display 19 based on the photometric value has also moved to the two-step over side. This is because the main subject is within the dimmable distance by the flash light, so that proper exposure can be achieved by using the flash light.

In the state shown in FIG. 4 (b), instead of the main subject being properly exposed, the high-intensity part of the background scene is greatly overexposed and goes out of the film latitude. Is shown. Therefore, the display state when the aperture setting value is changed and the aperture is reduced to 1.5 stops is shown in Fig. 4 (c).
As shown in, the exposure value display 19 based on the photometric value also moves to the under side 1.5, and the overexposed state of the background scene is considerably improved. At this time, since the main subject is still within the dimmable distance by the flash light, the exposure value of the main subject is displayed at the position of the target exposure value index. Therefore, it can be seen that the difference in brightness between the main subject and the background scene is greatly improved.

Next, when the aperture is further changed and the aperture value is reduced to 11, the display state shown in FIG. 4 (d) is obtained, and the exposure value display 19 based on the photometric value shifts to the under side by 1.5 steps, The exposure value also shifts to the 0.5 side under side. This is because when the diaphragm is narrowed, the dimmable distance by the flash light becomes shorter, which exceeds the limit at which the main subject can be properly exposed.

In the example of FIG. 4, the aperture priority mode has been described, but similar effects can be obtained in other modes. For example, in the program mode, changing the exposure compensation amount (override amount) changes the combination of the aperture and shutter speed on the program line, so when shooting with flash light, you can use it in the same way as the aperture priority mode. It will be possible.

It should be noted that when flashlight photography is performed when the field is very bright, such as during daytime synchro photography, natural light may wrap around a dark main subject compared to the background. Both flashlight and natural light are taken into account when displaying the subject. Therefore, as in synchronized shooting at a slow shutter speed,
Even when the influence of natural light on the main subject is strong, the correct exposure amount can be displayed. This will be described in detail later.

Next, an embodiment of the drive circuit of the display device of the present invention will be described with reference to the block diagram of FIG.

In FIG. 5, reference numeral 21 is a microprocessor (hereinafter referred to as MPU), which controls the exposure control unit and the automatic focus adjustment unit of the camera and the display of the display unit. In the MPU, IP _{1 to} IP ₁₁ are input ports, OP _{1 to} O
P ₃ is an output port, V _DD is a power supply terminal, and ▲ ▼ is a clear terminal. Resistor R ₀ and capacitor ₀ keep clear terminal ▲ ▼ in “L” state for a very short time to charge capacitor C ₀ when power supply battery BA is bonded, and then in “H” state,
It also constitutes a power supply circuit that supplies stable power to the terminal V _DD .

A flash emission control unit 22 outputs guide number information IV to the MPU and a charge completion signal when charging is completed.

Reference numeral 23 denotes a lens, which has an open aperture value AV ₀ , a minimum aperture value AVmax,
Distance information DV corresponding to the in-focus position is output to the MPU.

Reference numeral 24 is a DX code reading unit displayed on the film cartridge, and outputs the film sensitivity information SV to the MPU.

25 is a photometry section of the object field, which is a photometry start signal ADS from the MPU.
Starts photometry by TR, and the photometric value BV of the light receiving elements SPC1 to SPC5
Send 1 to BV5 to the MPU. In flash photography, when a proper exposure amount is reached based on the photometric value, a flash emission stop signal FLSTP is sent to the flash emission control unit 22 to stop the emission.

Reference numeral 26 denotes a focus adjusting microprocessor of the automatic focus adjusting unit AF, which controls distance measurement calculation and lens driving, and sends a focus adjustment completion signal AFE to the MPU 21. The start and end of the focus adjustment operation are controlled by the AF start signal AFS and AF stop signal AFSTP from the MPU 21.

An exposure control unit 27 controls the exposure based on the shutter speed TV and the aperture value AV output from the MPU. When the front curtain of the shutter is completed, the flash light emission trigger switch SX is closed and the flash light emitter starts to emit light.

Reference numeral 28 denotes a display unit, which is a shutter speed aperture value for exposure control, charging completion of the flash light emitting device control unit, presence / absence of exposure compensation, maximum value EVmax and minimum value E of the exposure value obtained from the brightness of the field.
Difference of Vmin from the exposure value EV for exposure control ΔEVmax, ΔEVmin,
Also, the difference ΔEV _AF from the exposure control exposure value EV of the exposure value obtained from the brightness of the main subject is transmitted from the MPU, and the display described with reference to FIG. 2 is performed. Further, whether or not the above ΔEV _AF is displayed is controlled by the automatic focus adjustment completion signal AFE, which will be described later.

S ₁ is an automatic focus adjustment (AF) start switch, S ₂ is a release switch, and S +/- is an exposure compensation (override) setting switch. The above three switches are AND circuits AN
Input, and when all the switches are OFF, the output of the AND circuit AN becomes “H” and even one switch is ON.
In the case of, the output of the AND circuit AN becomes "L". When the output of the AND circuit becomes "L" (SW ON), photometry is started and the hold time is extended.

S _MD1 and S _DM2 are switches for setting the automatic exposure control (AE) mode. By combining them, the program mode (P mode),
Aperture priority mode (A mode), shutter speed priority mode (S mode), and manual mode (M mode) can be selected.

S _TU and S _TD are the switches for increasing or decreasing the shutter speed setting value.
_AU and S _AD are switches for increasing / decreasing the aperture setting value. To adjust the exposure amount (override setting), set switch S _TU and S _TD to O while switching switch S +/- to ON.
N to do.

FIG. 6 shows a flow chart of signal processing for exposure control and display processed in the microprocessor.

First, when the battery is installed in the device, the clear signal ▲ ▼ becomes “L” for a short time, the MPU is set to the initial state, and then the clear signal ▲ as shown in FIG.
When ▼ becomes “H”, the routine shown in FIG. 6 operates.

At step P1, the input / output port of the MPU and the random access memory (RAM) are set to initial values. Step P
Move to 2 and check the output of AND gate AN, and select "H" (SW is OFF,
If that is the switch S _1, S _2, S +/- is all OFF), and reset the port (step P3), returns to step P2 all of the indicator is turned off (step P4) to.

At step P2, the output of AND gated AN is "L" (SW
If it is ON), move to step P5 to start photometry of the field. That is, the photometry start signal ADSTR is momentarily set to "L", and the photometry section performs the photometry once. Move to step P6, read the aperture value AV ₀ , the minimum aperture AVmax and the distance information DV, which are the information peculiar to the lens, read the guide number IV and the charging completion signal as flash information in step P7, and further read the film cartridge in step P8. Read the DX code from and read the film sensitivity information SV.

Move to step P9, start automatic focus adjustment (AF) switch S ₁
If it is ON, the AF start signal AFS is momentarily set to "L" to start the automatic focus adjustment (AF) operation (step P10).
If the switch S ₁ is OFF, the AF stop signal AFSTP is momentarily set to "L" to stop the automatic focus adjustment operation (step P11).

Next, in step P12, the signals of the automatic exposure control (AE) mode setting switches S _MD1 and S _MD2 are input to determine the AE mode. Then, in step P13, the exposure compensation setting switch S +/- and the shutter speed setting value increasing / decreasing switch S
Input the signals of _TU and S _TD increase / decrease switches S _AU and S _AD to determine the exposure compensation value (override amount), shutter speed setting value, and aperture setting value.

In step P14, the shutter speed and aperture value for exposure control are calculated from the various input values and photometric values described above. This exposure calculation part will be described later in detail.

Now that all the data to be displayed have been prepared, the data is sent to the display device and displayed in step P15.

The flow advances to step P16, P17, examine the release Sui Tutsi S ₂ and the automatic focus adjustment completion signal AFE, a S ₂ is ON, and AF
If it is completed, the process proceeds to step P18 to control the exposure. Also if S ₂ is OFF, the when not in AF completion omitted step P18.

Proceeds to step P19, examining the output of the AND circuit AN, if judged ON the switch SW to "L", i.e., the photometric switch S _1, the release Sui Tutsi S _2, exposure compensation switch S +/-
If either of them is ON, proceed to step P20, reset the 10-second timer and start the clock. And step P2
In 1 check the timer clock, and if 10 seconds have not passed, return to step P5 to continue measuring the field. Also, when 10 seconds have passed, the process returns to P2 and the switch SW turns to "L".
Reset the port until the display becomes, and turn off all the display parts.

Now, the details of the exposure calculation routine shown as step P14 in FIG. 6 will be described with reference to FIG.

In this routine, the photometric values BV _{0 to} BV ₅ of each area obtained by multi-divisional photometry of the object field are input, and the shutter speed TV for exposure control and the aperture value AV are obtained according to the shooting mode, film sensitivity, distance information and the like. Further, the maximum value EVmax of the exposure value obtained by dividing and metering the field as the data for display, the steps ΔEVmax and ΔEVmin from the exposure control value EV of the minimum value EVmin are obtained, and further,
The value ΔEV _AF indicating the difference between the exposure value of the main subject and the exposure control value, overexposure, and underexposure is calculated.

First, in step P31, the photometric values BV _{1 to} BV ₅ of the respective areas obtained by multi-divisional photometry of the object field are input. Next, the completion of automatic focus adjustment is checked (step P32), and if not completed, the photometric value BV ₁ of the central part of the object field, which is the main subject part, is stored in BV _AF (step P33). As a result, BV _AF will show B when _AF is completed.
V ₁ , that is, the brightness of the main subject is locked.

Next, in step P34, the photometric values BV ₁ to
The exposure values EV _{1 to} EV ₅ and EV _AF corresponding to BV ₅ and BV _AF are calculated by the following formula.

_{EV 1 = BV 1 + AV 0} + WVi + SV-EXP ............................................................ EV 5 = BV 5 + AV 0 + WVi + SV-EXP EA AF = BV AF + AV 0 + WVi + SV-EXP Here, AV ₀ is the aperture value, WVi is the aperture metering error amount of the lens, SV is the film sensitivity, and EXP is the exposure correction amount (override amount).

Here, the post-AF also completed Request EV _AF is because BV _AF is also fixed in step P33, SV, also changes EV _AF because of the value that changes like EXP.

Step P35, from the above EV values, the maximum value EVmax,
Find the minimum value EVmin.

Next, in step P36, the charge state of the flash emission control section is checked. If not charged, step and P37
Go to, EV field exposure value EV previously obtained for natural light shooting
A calculation for natural light photography is performed by a known calculation formula based on _{1 to} EV ₅ , the photography mode and each set value, and a shutter speed value TV and an aperture value AV are obtained for exposure control.

Go to step P38, EVmax and EVmin obtained earlier, and the target EV (= TV
+ AV) and the difference in number of steps ΔEVmax, ΔEVmin is calculated by the following formula.

ΔEVmax = EVmax− (TV + AV) ΔEVmin = (TV + AV) −EVmin This value indicates that the high-luminance and low-luminance parts of the scene are overexposed.
It indicates the degree of underexposure and is the display data of the exposure value display unit 19 of the display unit.

Further, in step P39, the step number difference ΔEV _AF from the target EV is also calculated for the main subject by the following formula as in the above.

ΔEV _AF = (TV + AV) -EV _AF This value indicates the degree to which the main subject is overexposed or underexposed. As with the above, the exposure value display section of the display section
It becomes the display data of 19, and blinks when the AF completion signal is input as described later.

If charging is completed in step P36, the process proceeds to step P40, and the field exposure value previously obtained for flash photography is obtained.
Based on EV _{1 to} EV ₅ , the shooting mode and each set value, a flash light shooting calculation is performed by a known calculation formula to obtain a shutter speed value TV and an aperture value AV for exposure control.

Proceeding to step P41, .DELTA.EVmax and .DELTA.EVmin are obtained as the display data as described above in step P38.

Next, at step P42, the dimmable distance DV ₁ by the flash light is obtained by the following known equation.

DV ₁ = IV + SV-AV-EXP where IV is the flash emitter guide number, SV is the film sensitivity, AV is the aperture value, and EXP is the exposure compensation amount.

In step P43, the actual distance information DV input from the lens is subtracted from the previously obtained DV ₁ to obtain the overexposure and underexposure amount ΔEV _FL when the main subject is proved only by the flash light. As a result, if EV EV _FL is not negative,
Set EV _FL to 0, and if it is not 0, proceed directly to the next step (steps P44, P45). This is because the flash light is stopped by the TTL dimming, so that if the main subject is within the dimmable distance, proper exposure can be provided only by the flash light.

Proceed to step P46, and obtain the overexposure and underexposure amount ΔEV _N when the main subject is proved only by natural light. This is the same as the calculation performed in step P39 in the case of natural light photography described above.

With the above, the overexposure / underexposure amounts ΔEV _FL and Δ of the flash light only and the natural light only, respectively.
Since EV _N has been obtained, in step P47, the overexposure / underexposure amount when flashlight and natural light are used in combination is determined based on the above value, and is stored in the memory as display data ΔEV _AF . The calculation formula is by.

For example, if ΔEV _FL is one step lower and ΔEV _N is one step lower, ΔEV _AF = log ₂ (2 ⁻¹ +2 ⁻¹ ) = 0, and the overall exposure value is a proper value.

Above, the shutter speed for exposure control calculated by this routine
TV, aperture value AV, overexposure amount ΔEVmax, which is the difference from the target exposure value of the highest brightness part of the scene, similarly underexposure amount ΔEVmin of the lowest brightness part, overexposure / underexposure amount from the target exposure value of the main subject Although will be .DELTA.EV _AF is displayed is sent to the display unit, for .DELTA.EV _AF is
Displayed only when AF is completed, so control MPU
The display is controlled by the AF completion signal output from.

FIG. 8 is a block diagram of the display drive circuit. SR ₁ ~ SR ₅
Is a shift register, the output of which is a latch circuit SR ₁ ′
It is latched to ~SR ₅ '. Decoders DC _{1 to} DC ₅ are connected to the output side of the latch circuit and are configured to drive the respective display elements of the display section, but the output side of the latch circuit SR ₅ ′ (excluding charge completion display data) There is a gate circuit GT between the decoder DC _5, open only the gate when the AF completion signal AFE is input, the latch SR ₅ decoder DC ₅ content is'
Entered in. Further, XL is a crystal oscillator for generating a reference clock for the display section drive circuit, and the output of the decoder 5 is controlled by a pulse signal obtained by dividing the reference clock so as to perform a blinking display.

The operation will be described next. First, when the display selection signal CSDSP from the control MPU becomes “H”, the clock signal SCK is given to the shift register and the display data DATA is sent to each of the shift registers SR _{1 to} SR ₅ Given to. All data is SR ₁ to SR ₅
To input display section selection signal CSDSP becomes "L", the contents of the shift register SR ₁ to SR ₅ is output Ratsuchiparusu La Tutsi timing generating circuit LT is transferred to the latch SR ₁ '~SR _5' to. Then, this data is decoded by the decoders DC _{1 to} DC ₅ and displayed on the display unit.
The contents of SR ₅ ′ (excluding the charging completion display data) are only decoder DC ₅ when the AF completion signal AFE is input and the gate GT is opened.
Is entered and displayed.

The embodiment of the present invention has been described above. Instead of the flash emission control of the TTL light control method used in the embodiment of the present invention, an external light control method, a flash control method, or only a set light amount is used. The display device of the present invention can also be applied to the case where a flash light emitter of a manual flash type that emits light is used.

Also, when focusing by the automatic focus adjustment mechanism, pre-flash is emitted, the reflected light from the main subject is measured, and the density reproduced on the film of the main subject by the flash light is displayed on the density distribution of the field. You can also choose to do so. In this case, if only the central portion of the object scene is measured and stored and the photometric value of the main subject is used, it is possible to deal with a composition change in which the main subject after photometry is shifted from the center of the screen. In addition, the field of view is divided into meters and the metering values of each area are stored,
Displaying the luminance distributions of the main subject and the scene by the stored values can cope with a change in composition.

Furthermore, in the case of a camera that does not have information on the light intensity of the flash light emitter and information on the distance to the main subject, it is assumed that proper exposure will be performed on the subject for which distance measurement has been performed, unless exposure compensation is performed. It is also possible to display the image at the center of the density distribution reproduced on the film (a position that is biased by that amount when the exposure is corrected).

〔The invention's effect〕

As described in detail above, according to the present invention, the display means includes the exposure control value based on the outputs from the exposure control value output means and the first and second calculation means, and the subject in a plurality of divided areas. The density distribution reproduced on the film is displayed, and the density reproduced on the film of the main subject when performing flash light photography is the same as the density distribution of the subjects in the plurality of regions on the same display unit. It is displayed in a display mode different from the display of the density distribution of the subject in the plurality of regions described above.

As a result, when performing flash light photography, the state of the contrast between the main subject and the background portion of the image reproduced on the film can be concretely and visually confirmed before the photography. By adjusting the exposure control value as necessary, a photograph having a desired contrast as intended for photographing can be photographed without requiring special skill.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of an array state of light receiving elements of a photometry section of a camera equipped with a display device of the present invention, FIG. 2 is a diagram showing an example of a display part of the display device, and FIG. FIG. 4 is a diagram showing a display example in the case of FIG. 4, FIG. 4 is a diagram showing a display example in the case of flash light photography, FIG. 5 is a block diagram of the drive circuit of the display device, and FIG. 6 is processed in the microprocessor. FIG. 7 is a flow chart of the signal processing relating to exposure control and display, FIG. 7 is a flow chart of the exposure calculation routine, and FIG. 8 is a block diagram of the display drive circuit. 10: Display, 12: Shutter speed display, 13: Aperture display, 1
6: Overexposure / underexposure number display scale, 18: Target exposure value index, 19: Exposure value display section.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Mukai 2-30 Azuchi-cho, Higashi-ku, Osaka-shi, Osaka, Osaka, Osaka International Building Minolta Camera Co., Ltd. (72) Toshio Yamaki 2-chome, Azuchi-cho, Higashi-ku, Osaka-shi, Osaka No. 30 Osaka Kokusai Building Minolta Camera Co., Ltd. (72) Inventor Nobuyuki Taniguchi 2-30 Azuchi-cho, Higashi-ku, Osaka City, Osaka No. 30 Osaka City Kokusai Building Minolta Camera Co., Ltd. (56) Reference JP-A-56-154719 ( JP, A) JP 57-168237 (JP, A)

Claims (1)

[Claims] Claim: What is claimed is: 1. A subject field is divided into a plurality of areas, and a photometric means for measuring the brightness of each area, a distance information output means for outputting distance information with respect to a main subject, and an exposure control value for flash photography. And a first calculation for calculating a density distribution in which subjects in a plurality of areas are reproduced on the film based on the output of the photometry unit and the output of the exposure control value output unit. Means for calculating the density at which the main subject is reproduced on the film by the flash light, based on at least the output from the distance information output means, the exposure control value output means, and the first and first means. The exposure control value and the density distribution reproduced on the film of the subject in the plurality of divided areas are displayed on the basis of the output from the second calculating means, and on the film of the main subject. A display unit for displaying the reproduced density on the same display unit as the density distribution of the subject in the plurality of areas in a display mode different from the display of the density distribution of the subject in the plurality of areas. And the display device of the camera.