JPH05289161A - Display device for camera and stroboscope controller - Google Patents

Abstract

PURPOSE:To effectively utilize a display function such as display with picture in the case of manually setting a diaphragm value or a shutter speed by displaying an image effect obtained at the time of executing photographing at a set exposure value by the display with picture. CONSTITUTION:In a camera 1 in which either or both of the shutter speed and the diaphragm value are manually set, plural program diagrams where the combination of the shutter speed and the diaphragm value is regulated are previously stored and the set shutter speed and the set diaphragm value are detected and compared with a program diagram. Then, the effect obtained at the time of executing photographing at the set shutter speed and the set diaphragm value is displayed on an external display part 6. As for the display part 6, the shutter speed and the diaphragm value are displayed on a display part (a), a photographing mode, film sensitivity and the number of film frames are displayed on a display part (b), and the display with picture expressing the image effect is displayed on a display part (c).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for displaying an image effect obtained when a picture is taken.

[0002]

2. Description of the Related Art In recent years, a computer has been built in a camera, and exposure control, which requires a lot of knowledge, has become easy to perform by various photographing modes. For example, since the exposure control suitable for the sport and the exposure control for shooting the sport, etc. are pre-programmed, the photographer calls the "portrate" and "sports". By simply selecting the shooting mode, it is now possible to easily shoot suitable images.

In recent years, the amount of programs has increased, and many photographing modes can be selected, and exposure control suitable for many photographing situations can be automatically performed. On the other hand, however, the number of programmed shooting modes is so large that it becomes difficult for the shooter to even understand what kind of shooting each mode is for.

As a technique for solving this, a technique of displaying the characteristics of a selected photographing mode by a pictorial display is known from Japanese Patent Laid-Open No. 58-198032. According to this display, the photographer can recognize the current photographing mode by the simplified picture. After that, shooting mode
The number of pictures is increasing more and more, and if one picture display is used for one mode as described above, there is a problem that the number of necessary pictures becomes too large and the limited display area of the camera cannot display all the pictures. Occurs. In order to deal with this, by displaying a plurality of independent picture displays as described above at the same time,
There has been proposed a shooting mode setting display device which shows a new image effect by combining the image effects of the respective picture displays. According to this, for example, by simultaneously illuminating the pictorial display which means the porto mode and the pictorial display which means the landscape photography mode, it is a pan-focus mode suitable for commemorative photography and the like. Can be displayed.

[0005]

Recently, the automation of cameras has advanced, and most of the cameras are very convenient because they can take a relatively satisfactory photograph just by pressing a shutter. .. On the other hand, however, recent cameras place too much emphasis on automation, so all new functions are used on the premise that automatic shooting (program auto) is performed, and it seems like a high-level user. However, for those who use the manual for the first time, it can be said that the camera has made no progress.

In fact, like the above-mentioned conventional technique, by setting the photographing mode in which various image effects can be obtained, a program suitable for the condition of the subject to be photographed is selected from a plurality of programs, It became possible to take excellent shots, and moreover, it became possible to display the image effects when shooting in each shooting mode with a pictorial display. It was a useless function for no users.

The display such as a picture display is very useful because the image effect of photographing can be seen at a glance, but it cannot be used at all without using the program auto. Therefore, in the present invention, when the aperture value or the shutter speed is manually set (that is, when the so-called shutter speed priority mode, aperture priority mode, or manual mode is used), the shooting is performed at the set exposure value. An object of the present invention is to provide a display device for a camera, which can display the obtained image effect by a display such as a pictorial display.

Further, the present invention provides a display device for a camera capable of measuring a distance to a subject and displaying an image effect obtained when photographing is performed at the distance by a display such as a picture display. To aim. It is another object of the present invention to provide a display device for a camera, which is capable of detecting a motion of a subject and displaying an image effect obtained when the subject is photographed by a display such as a pictorial display.

Further, according to the present invention, when stroboscopic photography is performed with a set exposure value (shutter second and aperture value), it is determined whether pre-flash for red-eye reduction is necessary according to the exposure value. However, it is an object of the present invention to provide a strobe control device which is characterized by pre-emission as needed.

[0010]

In order to achieve the above object, the present invention has a first detecting means for detecting a set shutter speed and a second detecting means for detecting a set aperture value. However, in a camera capable of manually setting either one or both of the shutter speed and the aperture value, a storage means having a plurality of program diagrams that predefine combinations of shutter speed and aperture value, and the first detection Comparing means for inputting the output of the means and the output of the second detecting means and comparing them with the program diagram, and shutter speed and aperture corresponding to the program diagram and corresponding to the program diagram, respectively. Based on the comparison result of the display means for displaying the image effect obtained when shooting with the value and a display different from the shutter speed and the aperture value, The display device of the camera is configured to have control means for controlling the display means so as to show an image effect obtained when shooting is performed with the set shutter speed and the set aperture value. ..

Further, a distance measuring means for measuring a distance to the object, a comparing means for comparing the result from the distance measuring means with a predetermined value, and an image effect obtained when the object is photographed at the distance. The display device of the camera is configured so as to have display means for displaying the image effect and control means for controlling the display means based on the result of the comparison means and displaying an image effect according to the distance to the subject.

Further, a motion detecting means for detecting the motion of the object, a comparing means for comparing the result from the motion detecting means with a predetermined value, and a display showing an image effect obtained when the object is photographed. The display device of the camera is configured so as to have a means and a control means for controlling the display means based on the result of the comparison means and displaying an image effect according to the movement of the subject. In a camera having a first detection means for detecting a set shutter speed, and a second detection means for detecting a set aperture value, a strobe and a control means for controlling light emission of the strobe, A strobe control device for causing a strobe to pre-light for red-eye reduction based on the output results of the first detection means and the second detection means.

[0013]

1 to 8 are views showing an embodiment of the present invention. FIG. 1 is an external view of the camera of this embodiment. Figure 2
FIG. 3 is a diagram showing a state of an external display unit 6 of the camera of this embodiment, and FIG. 3 is a diagram showing a state of a viewfinder display unit of the camera of this embodiment. FIG. 4 is a program diagram for controlling the shooting software mode of the camera of this embodiment. Figure 5
FIG. 4 is a diagram showing a photometric area of the photometric device of the camera according to the present embodiment. FIG. 6 is a block diagram of the camera system of this embodiment, and FIGS. 7 and 8 are flowcharts showing the operation of the CPU in the block diagrams.

First, the operation and display of the camera of this embodiment will be described with reference to FIGS. 1 to 5. In Figure 1,
The camera body 1 has a dial 2 used to switch various information, a program mode, and a shutter speed priority mode.
Mode, aperture priority mode, or manual mode to select the exposure control mode switch button 3, shooting mode setting buttons 4 and 5 for setting shooting modes such as portrait or sports, An external display unit 6 for displaying necessary information, a release button 7, and a power switch 8 are provided.

The photographer rotates the dial 2 while depressing the exposure control mode switching button 3 so that the program mode (P), the shutter speed priority mode (S), and the aperture priority mode (A). ) Or a manual mode (M) can be selected. The external display section 6 displays the shutter speed and the aperture value on the display section a as shown in FIG. 2, and the display section b displays the photographing mode, that is, P, S, A, M and the film sensitivity. The number of films and is displayed. On the display section c, a pictorial display showing the image effect is displayed. For the pictorial display, a portrait display that has the effect of blurring the background to bring out the person, a red-eye reduction display that reduces the red light of the person's eyes,
Pan-focus display that allows you to obtain a photograph with focus on the background as well as the subject, landscape shooting display that allows you to obtain sharp pictures with a deep depth of field, silhouette display that can emphasize the subject as a silhouette, and momentary movement There are sports display that can bring about the effect of making the subject stand still, close-up display that can obtain sharp pictures with a relatively deep depth of field while the subject is closed up.

In FIG. 2, a display section c shows a port tray.
Portrait display 21 that means that it is suitable for shooting, red-eye reduction display 22 that means that it is suitable for red-eye reduction shooting, landscape shooting display 23 that means that it is suitable for landscape shooting, and silhouette shooting A silhouette display 24 that means that it is suitable, a sports display 25 that means that it is suitable for sport shooting, and a close-up display 26 that means that it is suitable for close-up shooting are displayed.

FIG. 3 is a view showing the state of the display section in the finder. The display section d outside the screen frame 20 is an external display section.
It can be displayed by the pictorial displays 21 to 26 as in the case of the display section c of 6. Figure 4 is a program diagram that has been entered in advance. In the figure, the vertical axis represents the aperture value (FNO.), The horizontal axis represents the shutter speed (T), and the diagonal axis represents the EV value (Lv value in ISO 100).

Reference numeral 31 is a program diagram of the exposure value suitable for the portrait photography, and Ev = -1 to 7 is the shutter time.
From T = 2 to 1/15, aperture value F = 2.8, Ev = 7 to 19, shutter = T = 1/15, aperture value F = 2.8 to shutter = T = 1/10
It is a combination of shutter-second and aperture value on the line connecting 00 and aperture value F = 32. This makes the program diagram
An exposure value corresponding to 31 has the effect of blurring the background and making the person stand out. The image effect obtained at this time is a picture display
Indicated by 21.

Reference numeral 32 is a program diagram of an exposure value suitable for landscape photography, and Ev = 5 to 18 is shutter-second T = 15.
At 1/500, aperture value F = 22, Ev = 18 or more, the combination of shutter time and aperture value coincides with the above 31. Thus, with the exposure value corresponding to the program diagram 32, a sharp photograph with a deep depth of field can be obtained. The image effect obtained at this time is shown by the pictorial display 23.

33 is a program diagram of an exposure value suitable for sports photography, and Ev = -1 to 13 is shutter-second T = 15.
~ 1/1000, Aperture value F = 2.8, Ev = 13 ~ 19 Shutter-
Shutter in the range of T = 1/1000 and aperture value F = 2.8 to 22 per second-a combination of aperture and aperture value. As a result, at the exposure value corresponding to the program diagram 33, a stop motion effect of stopping a momentary motion is produced. The image effect obtained at this time is shown by the pictorial display 25.

Reference numeral 34 is a program diagram of an exposure value suitable for close-up photography. For Ev = 4 to 16, shutter time T = 15 to 1 / sec.
250, aperture value F = 16, Ev = 16 to 19 are combinations of shutter time and aperture value that match 31 above.
As a result, with the exposure value corresponding to the program diagram 34, a sharp photograph with a relatively deep depth of field can be obtained while the subject is closed up. The image effect obtained at this time is shown by the pictorial display 26.

Reference numeral 35 is a program diagram of an exposure value suitable for pan-focus shooting, and for Ev = 2 to 12, shutter speed T = 15 to 1/60, aperture value F = 8, Ev = 12 to. Up to 19, the combination of shutter speed and aperture value is the same as 31 above. As a result, with the exposure value corresponding to the program diagram 35, it is possible to obtain a photograph in which not only the subject but also the background is in focus, which is particularly effective in commemorative photography. The image effect obtained at this time is shown by the pictorial displays 21 and 23.

An exposure value suitable for silhouette photography can be determined from the divided photometry results. The detailed method will be described later. The image effect obtained at this time is shown by the pictorial display 24. The pictorial display 22 is a display that means that red-eye reduction shooting is performed. The red-eye reduction shooting is shooting in which the strobe light is preliminarily emitted in order to prevent the person's eyes from glowing red when shooting a person using a strobe at night. The image effect obtained at this time is shown by the pictorial displays 21 and 22.

The respective operations when the camera of this embodiment is used in the aperture priority mode, the shutter speed priority mode, and the manual mode will be described below. First,
The operation when used in the aperture priority mode will be described. The aperture priority mode is a mode in which the photographer manually sets only the aperture value and the shutter speed is automatically controlled to the proper exposure value measured by the camera.

By rotating the dial 2 while pressing the exposure control mode switch button 3, the aperture priority mode (A)
Can be selected. The photographer can freely manually set the desired aperture value by rotating an aperture ring (not shown) provided on the lens. A photometric device (not shown) is installed inside the camera to measure the brightness of the subject to be photographed. The photometric result is processed in the computer, the shutter time suitable for the set aperture value is calculated, and the shutter is controlled.

The set aperture value and the calculated shutter speed are compared with the above-mentioned program diagram that is input in advance to the computer. If there is a corresponding program diagram as a result of comparison, a pictorial display showing the image effect obtained when shooting is performed based on the program diagram is displayed on the external display section 6 and the finder frame 20 external display section d. .. For example, the shutter speed is 1/1000 second and the aperture value is 2.8.
4 corresponds to the program diagram 33 of FIG. 4, a pictorial display 25 is displayed on the external display unit 6 and the display unit d outside the finder frame 20 as a display signifying that it is suitable for sports photography. ..

Next, the operation when used in the shutter speed priority mode will be described. The shutter speed priority mode is a mode in which the photographer manually sets only the shutter speed and the aperture value is automatically controlled to the proper exposure value measured by the camera. The shutter-second priority mode (S) can be selected by rotating the dial 2 while pressing the exposure control mode switching button 3.

By operating the rotary dial 2 provided on the camera, the photographer can manually set the shutter speed at the desired shutter speed. A photometric device (not shown) is installed inside the camera to measure the brightness of the subject to be photographed. The photometric result is processed in the computer, the aperture value suitable for the set shutter speed is calculated, and the aperture is controlled.

The set shutter speed and the calculated aperture value are compared with the above-mentioned program diagram which is previously input to the computer. If there is a corresponding program diagram as a result of comparison, a pictorial display showing the image effect obtained when shooting is performed based on the program diagram is displayed on the external display section 6 and the finder frame 20 external display section d. .. For example, when the shutter speed is 1/30 second and the aperture value is 4, it corresponds to the program diagram 31 in Fig. 7, so the external display section 6 and the viewfinder frame 20 external display section d are used for portographing. Pictograms 21 and 23, as appropriate indications
And are displayed.

Finally, the operation when used in the manual mode will be described. The manual mode is a mode in which the photographer manually sets the shutter speed and aperture value. The manual mode (M) can be selected by rotating the dial 2 while pressing the exposure control mode switching button 3.

The photographer can freely set manually at the desired shutter speed by operating the rotary dial 2 provided on the camera, and by rotating the aperture ring (not shown) provided on the lens, You can manually set the aperture value you want. The set shutter speed and aperture value are compared with the above-mentioned program diagram that is input in advance in the computer. If there is a corresponding program diagram as a result of comparison, a pictorial display showing the image effect obtained when shooting is performed based on the program diagram is displayed on the external display section 6 and the finder frame 20 external display section d. .. For example, when the shutter speed is 1/4 second and the aperture value is 8, it corresponds to the program diagram 35 in FIG. 7, and therefore the external display section 6 and the viewfinder frame 20 external display section d are suitable for pan-focus shooting. Pictorial displays 21 and 23 are displayed as a display indicating that.

Next, the above-described red-eye prevention function and the determination of the exposure value suitable for silhouette shooting will be described. As described above, the red-eye prevention function is indicated by displaying both the pictorial display and 21 and 22, and this determination is made as follows. That is, in each mode, when it is detected that the exposure value corresponds to the program diagram 31 and the power switch of the strobe is turned on, it is determined that red eye prevention is performed. If it is determined that red-eye is prevented, the flash will be pre-flashed and the external display 6 and viewfinder frame 20
The picture displays 21 and 22 are displayed on the outer display section d.

The exposure value suitable for silhouette photography is indicated by displaying the pictorial display 24 as described above, and this determination is made as follows. In other words, with the manual mode set, the main subject (in this case, the subject you want to make into a silhouette) is captured in the center of the screen (area 1 to be described later), and split metering as shown in Fig. 5 is performed, and the data for each of areas 1-5 is recorded. By comparing the above, the set exposure value is, for example, the proper exposure of areas 2 and 3, and the exposure value suitable for silhouette shooting when the photometric value of area 1 is under a predetermined amount or more. Then, the picture display 24 is displayed. In the aperture priority mode and the shutter priority mode, a large negative correction is made by the exposure correction (for example, -2EV).
Sometimes it is determined that the exposure value is suitable for silhouette shooting,
The pictorial display 24 is displayed.

In any mode, for example, if the shutter speed is 1/8 and the aperture value is 2.8, the program diagram
It corresponds to both 31 and the program diagram 33, but in such a case it is indicated by alternately illuminating the pictograms 21 and 25. Of course, the same applies to the case of three or more.
Further, in the case of not corresponding to any program diagram, no picture display is turned on in this embodiment.

Next, the operation of the camera of this embodiment will be described with reference to FIGS. Figure 6 is a block diagram of the system. Shutter speed detection device 41, aperture value detection device 4
2.The signals from the release switch 43, the photometric device 44, the flash switch 45, the exposure control mode setting device 46 and the exposure compensation device 47 are output to the computer (CPU) 40 and the CPU 40
It is output to the external display section 6 and the display section d outside the finder frame 20 after being calculated by.

The operation of the CPU 40 in FIG. 6 is shown in FIGS.
It is a flowchart figure of. In step S1, the output signal from the exposure control mode setting device 46 is input, and it is detected whether or not the exposure control mode is the shutter speed priority mode, and if so, to step S2, and if not. Proceed to step S5. In step S5, the output signal from the exposure control mode setting device 46 is input to detect whether or not the exposure control mode is the aperture value priority mode, and if so, to step S6, and if not, to step S6.
Go to S11.

In step S11, the output signal from the exposure control mode setting device 46 is input to detect whether or not the exposure control mode is the manual mode. If yes, go to step S12, otherwise. Go to step S1. In step S2, the output signal from the shutter time detection device 41 is input, the set shutter time is detected, and the process proceeds to step S3.

In step S3, the exposure value measured by the photometric device 44 is read, and the process proceeds to step S4. Step S4
Then, based on the result of step S3, determine the aperture value suitable for shutter seconds read in step S2,
Proceed to S9. In step S6, the output signal from the aperture value detection device 42 is input, and the set aperture value is detected.
Proceed to S7.

In step S7, the exposure value measured by the photometric device 44 is read, and the flow advances to step S8. Step S8
Then, based on the result of step S7, determine the shutter time suitable for the aperture value read in step S6,
Proceed to S9. In step S9, the output signal from the exposure compensator 47 is input, the amount of exposure compensation is read, and the process proceeds to step S10.

In step S10, it is compared whether or not the exposure correction value read in step S9 is +2 or more.
Go to S17. In step S12, the output signal from the shutter time detection device 41 is input, the set shutter time is detected, and the process proceeds to step S3. In step S13, the output signal from the aperture value detection device 42 is input, the set aperture value is detected, and the process proceeds to step S14.

In step S14, the exposure value measured by the photometric device 44 is read, and the flow advances to step S15. In step S15, output signals from each of the five photometric areas are input, and the process proceeds to step S16. In step S16, it is determined whether or not the brightness in the central area is −2EV or less as compared with the surrounding areas, and the process proceeds to step S17.

In step S17, it is stored based on the comparison result of step S10 and step S16 whether or not it is suitable for silhouette shooting, and the process proceeds to step S18. Step S18
Then, it is compared whether or not the set shutter speed and exposure value correspond to the program chart 31, and the comparison result is stored in step S19. In step S20, the output signal from the strobe switch 45 is input, it is detected whether the strobe switch 45 is on or off, and the detection result is stored in step S19.

In step S22, it is compared whether or not the set shutter speed and exposure value correspond to the program diagram 32, and the comparison result is stored in step S23. Step
In S24, it is compared whether the set shutter speed and exposure value correspond to the program diagram 33, and in Step S25
The comparison result is stored with. In step S26, it is compared whether or not the set shutter speed and exposure value correspond to the program chart 34, and the comparison result is stored in step S27.

In step S28, it is compared whether or not the set shutter speed and exposure value correspond to the program chart 35, and the comparison result is stored in step S29. Step
In S30, a pictorial display is displayed on the external display unit and the display unit outside the finder frame 20 based on the storage results of Steps S17, 19, 21, 23, 25, 27 and 29. At this time, if two or more stored results are YES, the corresponding pictorial displays are alternately turned on as described above.

When the release switch 43 is turned on in step S31, photographing is performed and the process ends. In the present embodiment, each program diagram is shown by one line, but this is merely for convenience of description,
It is possible to give a width to the program diagram. By doing so, it is possible to make all combinations of the set aperture value and shutter speed correspond to any one of the pictorial displays, and as described above, no pictorial display is turned off.

In recent years, a technique has been proposed in which an encoder is provided in the lens to detect the distance to the focused object. In the present invention, this technique can be used to make more detailed judgments.

For example, in the present embodiment, if the set exposure value is 1/500 for the shutter speed and the aperture value is 22, the po
It can be used for any program diagram such as trace, landscape photography, and close-up photography. In such a case, in the present embodiment, all corresponding pictorial displays (that is, pictorial display 21, pictorial display 23, pictorial display 26)
The lights were turned on one by one, but by installing an encoder inside the lens,
You can judge that it is a close-up shot if it is within meters, a portrait if it is 1 to 3 meters, and a landscape shot if it is 3 meters or more. Therefore, even if the shutter speed is 1/500 and the aperture value is 22, there is only one corresponding picture display. In addition,
This is just one example, and any number of distance criteria can be considered.

Of course, it is also possible to obtain the image effect only from the distance to the subject without combining it with the exposure value. For example, if the distance to the subject is, for example, 1 meter or less, close-up shot, 1 to 3 meters for portrait, 3 to 5 meters for pan focus, and 5 meters or more, regardless of the exposure value program diagram. We judge that it is landscape photography and display the corresponding pictorial display.

Further, a technique for detecting the movement of an object based on the line-of-sight information and the color difference information has recently been proposed. In the present invention, this technique can be used to make more detailed judgments.

For example, in the present embodiment, when the set exposure value is 1/15 of shutter speed and aperture value of 2.8, it corresponds to both program charts of sports photography and sports photography. To do. In this case, in the present embodiment, all the corresponding picture displays (that is, the picture display 21 and the picture display 25) are alternately turned on. Shooting, if late, can be judged to be a portrait. Therefore, even if the shutter speed is 1/15 and the aperture value is 2.8, there is only one corresponding picture display.

Of course, it is also possible to obtain the image effect only from the movement of the subject without combining it with the exposure value. For example, the above example may be performed regardless of the exposure value.

[0052]

As described above, according to the present invention, the aperture value or the shutter speed is set manually (that is, in the so-called shutter time priority mode, aperture priority mode, manual mode). (EN) Provided is a display device of a camera, which allows a photographer to confirm an image effect obtained by an exposure value by displaying a picture or the like.

Further, there is provided a display device which allows the photographer to confirm by a display such as a picture display how the image effect changes depending on the distance to the subject. Further, there is provided a display device that allows the photographer to confirm by a display such as a picture display how the image effect changes depending on the movement of the subject. Also, when flash photography is performed with the set exposure value (shutter second and aperture value), it is determined whether pre-flash for red-eye reduction is required according to the exposure value, and if necessary, the pre-flash can be used. A strobe control device that emits light is provided.

[Brief description of drawings]

FIG. 1 is an external view of a camera of this embodiment.

FIG. 2 is a diagram showing a state of an external display unit 6 of the camera of this embodiment.

FIG. 3 is a diagram showing a state of a display unit in a finder of the camera of the present embodiment.

FIG. 4 is a program diagram for controlling a shooting software mode of the camera of the present embodiment.

FIG. 5 is a diagram showing a photometric area of the photometric device of the camera according to the present embodiment.

FIG. 6 is a block diagram of a camera system according to the present embodiment.

FIG. 7 is a flowchart showing the operation of the CPU in the block diagram.

FIG. 8 is a flowchart showing the operation of the CPU in the block diagram.

[Explanation of symbols for main parts]

 6-External display section d-Viewfinder frame outside display section 41-Shutter speed detection device 42-Aperture value detection device 44-Metering device 25-Strobe switch

Claims (5)

[Claims] 1. A first detecting means for detecting a set shutter speed, and a second detecting means for detecting a set aperture value, wherein either one of the shutter speed and the aperture value or In a camera in which both of them can be manually set, a storage unit having a plurality of program charts preliminarily defining combinations of shutter speed and aperture value, and an output of the first detection unit and an output of the second detection unit are input. , A comparing means for comparing it with the program diagram, and a shutter which corresponds to each of the program diagrams and produces an image effect obtained when photographing is performed with a shutter speed and an aperture value corresponding to the program diagram. Display means for displaying with a display different from the time and aperture value, and based on the comparison result of the comparison means, the set shutter time and the set aperture value. Camera display device characterized by having a control means for controlling said display means to show the image effect obtained when performing photography with a value. 2. The display means according to claim 1, wherein the display means has a plurality of independent pictorial displays, and by displaying a plurality of the independent pictorial displays at the same time, an image effect not present in the independent pictorial displays is exhibited. A display device for a camera characterized by the above. 3. Distance measuring means for measuring a distance to a subject, comparing means for comparing a result from the distance measuring means with a predetermined value, and an image effect obtained when the subject is photographed at the distance. And a control means for controlling the display means based on the result of the comparison means to display an image effect according to the distance to the subject. 4. A motion detecting means for detecting a motion of a subject, a comparing means for comparing a result from the motion detecting means with a predetermined value, and a display showing an image effect obtained when the subject is photographed. A display device for a camera, comprising: means for controlling the display means based on a result of the comparing means, and a control means for displaying an image effect according to a movement of a subject. 5. A camera having first detection means for detecting a set shutter speed and second detection means for detecting a set aperture value, and a strobe, and a control means for controlling light emission of the strobe. And a strobe control device for causing the strobe to pre-light for red-eye reduction based on the output results of the first detection means and the second detection means.