JP3860037B2 - Camera with flash device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a camera with a flash device including a flash device that emits flash light toward a subject, and more particularly, a flash light having a sufficient amount of light even for a subject at a long distance where the flash light does not reach by one light emission. The present invention relates to a camera with a flash device that can shoot with good light.
[0002]
[Prior art]
Conventionally, the following techniques are known as techniques for performing light emission control of a flash device in accordance with the subject distance.
[0003]
For example, Japanese Patent Laid-Open No. 8-327886 discloses a flash that irradiates a distance measuring point having a main subject measured by a multi-point distance measuring device with respect to a flash light amount irradiated to a distance measuring point at the center of a photographing field. A camera with a built-in flash is described in which an insufficient amount of how much light is insufficient due to flash light distribution characteristics is obtained, and an exposure amount by the flash is corrected to compensate for the insufficient amount. In this device, the flash exposure depends on the brightness in the field of view measured by the photometry unit and the distance to the main subject measured by the multi-point distance measuring device so that the exposure amount of the flash irradiated to the main subject does not become excessive. By controlling the flash light so that the exposure amount by light becomes an optimum exposure amount, an appropriate exposure amount can be obtained regardless of the position of the main subject in the field of view.
[0004]
Japanese Patent Application Laid-Open No. 11-95278 discloses a photometry obtained when pre-light emission is performed by a flash device, which includes a plurality of photometry circuits of different photometry methods and a distance information detection circuit for detecting distance information to a subject. An imaging apparatus is described in which a photometric value of a circuit is selected according to distance information obtained by a distance information detection circuit, and the light emission amount of the main light emission of the flash device is controlled using the selected photometric value. ing. According to this apparatus, the main subject can be photographed with an appropriate exposure according to the subject distance.
[0005]
Japanese Patent Application Laid-Open No. 2000-122128 discloses an image sensor in which an ND filter is disposed in front of the image sensor between the subject and the light path from the flash device reflected by the object to the image sensor. By controlling the amount of light incident on the lens, the flash emission amount is adjusted by creating a state that is effectively the same as changing the distance L while keeping the distance L to the subject constant. A method for adjusting the light emission amount of the flash device is described.
[0006]
Japanese Patent Application Laid-Open No. 2000-275786 discloses a lens-fitted photo film unit that can be switched to a flash light amount corresponding to each subject distance by moving a filter sheet covering the front surface of the flash light emitting unit according to the subject distance. Is described.
[0007]
In Japanese Patent Laid-Open No. 2001-005067, a reference voltage Vref is selected according to the measured subject brightness and subject distance, the reflected light is received by a phototransistor, light quantity integration is performed, and the light quantity integral value is the reference voltage Vref and A flash control device is described in which over-exposure during low-luminance short-distance shooting is prevented by stopping flash emission at the time of coincidence.
[0008]
Japanese Patent Application Laid-Open No. 2001-133858 discloses a photographing screen in which the illumination range of the flash is close to the photographing position by switching the photographing lens between the normal photographing position and the close photographing position and changing the flash light emitter in the reflector. There is described a film unit with a lens that is modified to cover the range and in which the light distribution parallax is corrected.
[0009]
Japanese Patent Laid-Open No. 2001-174484 discloses that the preliminary light emission and the main light emission are performed as a single light emission, and the distance to the subject is adjusted by adjusting the amount of the preliminary light emission according to the distance to the subject. A flash photographing device that can prevent red-eye according to the above is described.
[0010]
[Problems to be solved by the invention]
As described above, many techniques for performing light emission control of the flash device in accordance with the subject distance, that is, the distance from the camera to the subject are known. Each of these techniques is a technique for making the light emission amount of the flash device appropriate at the time of photographing according to the subject distance, on the premise that the flash light amount of the flash device is sufficient.
[0011]
Also, a technology that causes the flash unit to emit light multiple times during single-frame shooting, such as performing main flash for shooting and pre-flash prior to exposure, for the purpose of preventing red-eye phenomenon or measuring exposure accurately. Is well known.
[0012]
In addition, a technique of performing multiple exposure while causing a flash device to emit light a plurality of times is also well known for trick photography in which the same subject is captured a plurality of times within one frame.
[0013]
However, in a camera with a built-in or externally connected flash device, if the subject distance is too long for the camera's flash device to be underexposed, that is, the amount of light emitted from the flash device is sufficient. No technology has been proposed to compensate for the shortage of light in the absence of light.
[0014]
The present invention has been made in view of the above circumstances, and the object thereof is good even for a subject at a long distance by causing the flash device to emit light a plurality of times so that the single light emission of the flash device is underexposed. Another object is to provide a camera with a flash device capable of photographing.
[0015]
[Means for Solving the Problems]
  The present invention relates to a camera with a flash device including a flash device that emits flash light toward a subject.,Flash control means for controlling the flash device to emit light a plurality of times during one exposureA transmittance variable filter capable of changing a light transmittance distribution pattern is provided in an emission light path of the flash device or an incident light path of a photographing lens of the camera, and the light transmittance distribution pattern of the transmittance variable filter is provided. A filter control means for changing the flash unit in synchronism with a plurality of times of light emission of the flash deviceIt is characterized by that.
[0016]
  In the camera with a flash device configured as described above, when one frame is shot, the flash device emits light a plurality of times during one exposure so that the flash light does not reach in one flash. Even a subject at a long distance that is underexposed can be made to reach the flash light sufficiently, and good photographing is possible. In addition, a transmittance variable filter capable of changing a light transmittance distribution pattern is provided in an emission light path of the flash device or an incident light path of a photographing lens of the camera, and the light transmittance distribution of the transmittance variable filter is provided. Since the filter control means for changing the pattern in synchronization with the light emission of the flash device a plurality of times is provided, the uneven shape of the subject (the uneven shape in the distance direction from the camera) or the multiple subjects within the angle of view. It is possible to shoot with an appropriate exposure amount according to various subject conditions such as the positional relationship between subjects when they exist, and to prevent the occurrence of overexposed subjects due to multiple flash emission.
[0017]
  Preferably, the flash control means performs the control when a long-distance shooting mode for shooting a subject farther than a predetermined subject distance is set. As a result, the flash light can sufficiently reach even a subject at a long distance such that the flash light does not reach and is underexposed in one light emission, and good photographing is possible.
[0018]
  Also preferably,Distance detection means for detecting the distance to the subject is provided, and the flash control means increases the number of times of light emission during one exposure according to the length of the subject distance according to the subject distance detected by the distance detection means. It is assumed that the flash device is controlled so that Accordingly, the flash light can surely reach even a subject at a long distance where the flash light does not reach and is underexposed in one light emission, and good photographing is possible.
[0019]
Preferably, the filter control means reduces the irradiation light amount of the flash light or the exposure amount of the subject in an area where the subject distance is short according to the arrangement of the subject and the subject distance within the angle of view of the photographed image. The light transmittance distribution pattern of the transmittance variable filter is set.
[0020]
For example, if the subject distance in the center area of the angle of view is short and the subject distance in other peripheral areas is long, the light transmittance of the variable transmittance filter is centered in conjunction with multiple flash emission. By changing the light transmittance distribution pattern so as to gradually expand from the region toward the peripheral region, light is shielded so that the light transmittance in the central region of the transmittance variable filter is reduced in a plurality of light emission times. As a result, light emission from the next time is cut off for a short-distance subject that the flash light located in the central area of the angle of view reaches sufficiently, and for a long-distance subject located in the peripheral area of the angle of view. Thus, the amount of light can be increased by a large number of times of light emission to reach the flash light, and the subject can be photographed with an appropriate exposure amount over the entire field of view. In addition, when the subject distance in the central area of the angle of view is long, the light transmittance distribution pattern of the transmittance variable filter may be set as appropriate according to the state of the subject for other subjects, such as reverse to the above. Furthermore, the light transmittance distribution pattern of the transmittance variable filter is appropriately set for each of a plurality of types of subjects, and the method of changing the light transmittance distribution pattern in a plurality of light emission changes according to the subject distance within the angle of view. Filter function switching means may be provided.
[0021]
Note that the flash device can be applied to a device built in the camera body, a device connected externally to the camera body, and the like. In addition, in order to set the long-distance shooting mode, there is provided a mode selection means for selecting a desired shooting mode from a plurality of shooting modes, which can be set by an operator using a rotary dial or a switch. May be.
[0022]
In addition, an installation state determination unit for determining whether or not the camera body is in a stable installation state is provided, and 1 when the filter control unit determines that the camera body is in a stable installation state by the installation state determination unit. The flash device may be controlled to emit light a plurality of times during each exposure. As this installation state discrimination means, a sensor for detecting that the tripod is mounted on the camera body is provided on the tripod mounting screw part, and the camera body is determined to be fixed by the tripod based on the output of this sensor. Is possible.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing an external configuration of a camera with a flash device according to an embodiment of the present invention.
[0024]
The camera with a flash device (hereinafter simply referred to as a camera) 1 has a flash device 3 built in an upper right portion of a camera body 2. A light exit window 3a of the flash unit 3 and a zoom lens (autofocus lens) 4 as a photographing lens are disposed on the front surface of the camera body 2. On the upper surface of the camera body 2, a release button 5, a mode setting dial 6, a liquid crystal display device 7, an UP button 8u, a DOWN button 8d, and a filter setting dial 11 are provided. A tripod mounting screw portion 9 is formed on the lower surface portion of the camera body 2.
[0025]
FIG. 2 is a plan view showing an upper surface portion of the camera 1. The mode setting dial 6 is a mode selection means for setting the photographing mode of the camera 1 to one of SELF (self mode), MULTI (multi-flash mode), and AUTO (auto mode). The self mode is a shooting mode in which the photographer himself performs selection of use / non-use of the flash device 3 and focus and exposure adjustment. The auto mode is a shooting mode in which the camera 1 automatically performs selection of use / non-use of the flash unit 3 and focus and exposure adjustment. The multi-flash mode is a shooting mode peculiar to the present invention in which the flash device 6 emits light a plurality of times during shooting of one frame. When the multi-flash mode is set and the UP button 8u and the DOWN button 8d are operated, the number of flash emission per frame can be set. The set flash emission count is displayed on the liquid crystal display device 7 together with the shooting mode and the number of remaining frames.
[0026]
The filter setting dial 11 is used for setting whether to use / not use the transmittance variable filter 10 (FIG. 3) built in the optical path of the flash unit 3 or the zoom lens 4 and how to change the transmittance distribution pattern. Filter function switching means. The setting state of the transmittance variable filter 10 is also displayed on the liquid crystal display device 7.
[0027]
FIG. 3A is a cross-sectional view showing a schematic configuration of the flash device 3. This figure shows a configuration example in which a transmittance variable filter 10 is provided in the outgoing light path of the flash unit 3. The flash device 3 has a flash lamp (light source) 3b, a reflector 3c that reflects the flash light emitted backward from the flash lamp 3b and guides it to the light exit window 3a, and can efficiently irradiate the subject with the flash light. The lens 3d which consists of a Fresnel lens etc. which were attached to the light emission window 3a, and the transmittance | permeability variable filter 10 provided in the back surface side of the lens 3d are provided. A light-emitting circuit (not shown) that emits light from the flash lamp 3b is provided with a large-capacity main capacitor or a plurality of main capacitors so that flash light emission can be performed a plurality of times.
[0028]
FIG. 3B is a cross-sectional view illustrating a configuration example in the case where the transmittance variable filter 10 is provided in the incident optical path of the zoom lens 4 that is a photographing lens. A variable transmittance filter 10 is provided in the optical path of the zoom lens 4 that forms a subject image on the imaging surface 15 on which the film is disposed (for example, on the surface side of the lens).
[0029]
The transmittance variable filter 10 is formed of a circular liquid crystal filter as shown in FIGS. 3C to 3E, and is emitted from the light exit window 3a of the flash unit 3 by changing the transmittance distribution pattern. The irradiation area by the flash light can be changed.
[0030]
The first example of FIG. 3C shows a transmittance distribution pattern in which the peripheral region has the lowest transmittance (light-shielded state) and the inner region has the highest transmittance. The second example of FIG. 3D shows a transmittance distribution pattern in which the central region has the maximum transmittance and the outer region has the minimum transmittance (light-shielded state). The third example of FIG. 3E shows a transmittance distribution pattern in which the entire region has the maximum transmittance.
[0031]
The transmittance distribution pattern variable function of the transmittance variable filter 10 is used only in the multi-emission mode, and is fixed to the transmittance distribution pattern in FIG. .
[0032]
In the multi-flash mode, when the filter setting dial 11 is set to the “A” or “B” rotational position, the transmittance distribution pattern can be changed in synchronization with flash emission when one frame is shot. “A” is a set position when the subject distance in the central area of the angle of view is larger than the subject distance in other areas. On the other hand, “B” is a set position when the subject distance in the center area of the angle of view is smaller than the subject distance in other areas.
[0033]
Further, the number of transmittance distribution patterns also changes depending on the number of flash emission times. For example, when shooting is performed with the flash emission count set to 3, the transmittance distribution pattern changes in three stages as shown in FIGS. 4 (a) and 4 (b). FIGS. 4A and 4B show how the transmittance distribution pattern changes when the filter setting dial 11 is set to “A” and “B”, respectively.
[0034]
FIG. 5 is a block diagram showing the configuration of the control system of the camera 1. The control unit 12 having a function as a flash control means includes a flash device 3, a zoom lens 4, a release button 5, a mode setting dial 6, a liquid crystal display device 7, an UP button 8u, a DOWN button 8d, and a filter setting dial 11. Connected via system bus. The control unit 12 includes a CPU 12a, a ROM 12b, and a RAM 12c. The CPU 12a performs overall processing of the camera 1 by executing processing according to a program stored in the ROM 12b while using the RAM 12c as a work area.
[0035]
Next, the operation of the camera 1 configured as described above will be described. Here, the multi-flash mode, which is a shooting mode unique to the camera according to the present invention, will be described.
[0036]
In the camera 1 of this embodiment, the shooting mode is set to the multi-flash mode with the mode setting dial 6, the number of flashes of the flash unit 3 is set with the UP button 8 u and the DOWN button 8 d, and “A” or When the release button 5 is pressed in the state where the pattern change method of “B” is set, the flash unit 3 emits light for the set number of times during one exposure during one frame shooting, and the transmittance variable filter Photographing is performed by changing the transmittance distribution pattern of 10 in a stepwise manner in synchronization with flash light emission. That is, multiple exposure shooting is performed by the flash device 3 emitting light a plurality of times.
[0037]
At this time, assuming that the flash emission count is set to 3 times, the transmittance distribution pattern of the transmittance variable filter 10 is for the first time when the release button 5 is half-pressed, that is, when it is halfway pressed. When the release button 5 is fully pressed, the shutter is opened and the first flash emission is performed. After the first flash emission, the transmittance distribution pattern of the transmittance variable filter 10 is set to the second pattern, and after the second flash emission, the third pattern is set to the third time. After flash emission, the shutter is closed.
[0038]
The setting of how to change the transmittance distribution pattern, that is, the selection of “A” or “B” by the filter setting dial 11 is as follows: the uneven shape of one subject (the uneven shape of the subject in the distance direction from the camera 1), This is performed by the photographer in accordance with subject conditions such as the positional relationship between subjects when there are a plurality of subjects within one angle of view.
[0039]
For example, as shown in FIG. 6, when the subject distance in the center area of the angle of view is longer than the subject distance in other areas, such as when the tunnel (subject) 20 is photographed from the front of the entrance, the filter The setting dial 11 is set to “A” (how to change in FIG. 4A) and shooting is performed.
[0040]
In addition, as shown in FIG. 7, a person (subject) 30 near the photographer is arranged at the center of the angle of view, and a person (subject) 31 far away and a tree (subject) 32 farther away are 1 When the subject distance in the center area of the angle of view is shorter than the subject distance in other areas, such as when shooting within one angle of view, the filter setting dial 11 is set to “B” (see FIG. 4B). Set to (How to change) and shoot.
[0041]
Here, the principle of the multiple exposure shooting in the multiple emission mode will be described.
The reach distance L of the flash light is proportional to the sum of the squares of the number of times the flash device emits light. For example, in the case of a flash device having a guide number (GNo.) Of 10, the reach distance L is √ (10²+10²) Times √ (10²+10²+10²) Doubled. When the guide number is G and the F number is F, the relationship G = F × L is established.
[0042]
Therefore, when F = 4.0, when the film sensitivity is ISO 100, G = 10. Therefore, the reach distance L in the case of one-time light emission is 2.5 m, and the reach distance L in the case of two-time light emission is 2. The reach distance L in the case of 5 × 1.4 = 3.5 m and three times of light emission is 2.5 × 1.7 = 4.25 m. Note that G = 14 in the case of ISO 200 and G = 20 in the case of ISO 400. However, regardless of the ISO value, if the reach distance in the case of one-time light emission is L1, the reach distance L in the case of two-time light emission is L1. × 1.4 The reach distance L in the case of three times of light emission is L1 × 1.7 (see FIG. 8).
[0043]
In this way, the flash device 3 emits light a plurality of times each time one frame is shot, so that the reach distance of the flash light can be extended. Therefore, one flash of the flash device 3 is underexposed. Even a subject at such a long distance can be photographed satisfactorily.
[0044]
As shown in FIG. 6, when the subject distance in the central area of the angle of view is larger than the subject distance in other areas, as shown in FIG. By changing the light transmittance distribution pattern so that the portion with a large light transmittance of the transmittance variable filter 10 is gradually reduced toward the central area of the angle of view, appropriate exposure can be performed over the entire area of the angle of view. The subject can be photographed by the amount. That is, it is possible to prevent the subject located in front from being overexposed due to multiple exposure. In the case of FIG. 6, it is possible to photograph with appropriate exposure from the entrance of the tunnel 20 to the back.
[0045]
Further, as in the case of FIG. 7, when the subject distance in the central area of the angle of view is smaller than the subject distance in the other areas, as shown in FIG. By changing the light transmittance distribution pattern so that the portion having a large light transmittance of the transmittance variable filter 10 is gradually expanded toward the peripheral side region of the angle of view, it is appropriate over the entire region of the angle of view. The subject can be photographed with a sufficient amount of exposure. That is, it is possible to prevent the subject located in front from being overexposed due to multiple exposure. In the case of FIG. 7, it is possible to photograph with appropriate exposure from the person 30 at the center of the angle of view closest to the camera 1 to the tree 32 far away.
[0046]
The modification of the said embodiment is shown below as other embodiment.
In the above embodiment, when shooting a subject at a long distance that is underexposed by one flash of the flash device 3, the photographer determines that and operates the mode setting dial 6 to shoot. Although the mode is set to the multi-flash mode, when the camera 1 detects the subject distance and the subject distance is a predetermined distance or more, the shooting mode is automatically set to the multi-flash mode. It may be.
[0047]
In this case, the focus control signal of the zoom lens 4 can be used as information for detecting the subject distance. That is, the focus control circuit of the zoom lens 4 provided in the control unit 12 or the like is used as the subject distance detection means, and when the release button 5 is pressed halfway, for example, when the release button 5 is half pressed, The subject distance is detected based on this, and if the subject distance is equal to or greater than the predetermined distance, the shooting mode is switched to the multi-flash mode. The angle of view and the aperture value of the zoom lens 4 can also be used as information for detecting the subject distance. Further, the irradiation range of the flash light can be varied by changing the transmittance distribution pattern of the transmittance variable filter 10 according to the angle of view of the zoom lens 4.
[0048]
Furthermore, taking into account the sensitivity (ISO value) of the film set in the camera 1, if the camera 1 determines whether or not to set the multi-flash mode, it is possible to shoot with a more appropriate exposure. Can do.
[0049]
Further, the camera 1 may be configured to automatically determine whether or not to set the multi-flash mode and set the number of flash emission per frame based on the subject distance, film sensitivity, and the like. In the description of the above embodiment, the number of flash emission per frame is three, but it may actually be any number.
[0050]
Further, the shutter operation of the camera 1 may not only be kept open during flash emission, but may be intermittently performed to open and close in conjunction with a plurality of flash emission.
[0051]
Further, the camera 1 may determine whether or not the camera body 2 is in a stable installation state. If the camera body 2 is in a stable installation state, the shooting mode may be automatically set to the multi-flash mode. In this case, if a sensor that generates a predetermined signal when the camera 1 is fixed to a tripod is provided in the tripod mounting screw portion 9 as the installation state discriminating means, the control unit 12 switches the photographing mode based on the signal from the sensor. Switch to multi-flash mode.
[0052]
In the above embodiment, the photographer operates the filter setting dial 11 to set how to change the transmittance distribution pattern of the transmittance variable filter 10. As an application, the camera 1 may recognize the concavo-convex shape of the subject or the positional relationship between subjects when there are a plurality of subjects within one angle of view, and may be configured to automatically set according to the subject condition. .
[0053]
In the above embodiment, a circular liquid crystal filter is used as the transmittance variable filter 10, but the liquid crystal filter is not limited to a circular shape, and a rectangular liquid crystal filter may be used. Further, instead of the liquid crystal filter, a filter such as an ND filter that can change density distribution and transmittance distribution can be used.
[0054]
Further, the transmittance distribution pattern and the transmittance distribution pattern of the transmittance variable filter 10 are also changed by changing the transmittance distribution pattern and the transmittance distribution pattern shown in FIGS. It is not limited to.
[0055]
Further, the installation position of the transmittance variable filter 10 is not necessarily on the back side of the lens 3d. That is, the transmittance variable filter 10 may be installed so as to cover the front surface of the lens 3d, or may be installed on the front surface portion or inside of the lens barrel when provided on the photographing lens side.
[0056]
In the above embodiment, the case where the present invention is applied to a film photographing camera has been described. However, the present invention can also be effectively applied to a digital camera that performs electronic photographing using an imaging unit such as a CCD.
[0057]
As described above, according to the camera with a flash device of the present embodiment, the flash device can emit light a plurality of times during exposure during shooting of one frame, so that the reach distance of the flash light can be extended. Even if the subject is at a long distance where the flash light does not reach and underexposure is not possible with a single flash, the image can be taken well.
[0058]
【The invention's effect】
As described above, according to the present invention, the flash device emits light a plurality of times, so that even a subject at a long distance that is underexposed with a single light emission of the flash device can be well photographed. There is an effect.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an external configuration of a camera with a flash device according to an embodiment of the present invention.
2 is a plan view showing an upper surface portion of the camera with a flash device shown in FIG. 1. FIG.
3A is a cross-sectional view illustrating a schematic configuration of a flash device provided with a variable transmittance filter, and FIG. 3B is a cross-sectional view illustrating a schematic configuration of a photographing lens provided with a variable transmittance filter.
(C) is explanatory drawing which shows the 1st example of the transmittance distribution pattern of a transmittance variable filter, (d) is explanatory drawing which shows the 2nd example of the transmittance distribution pattern of a transmittance variable filter, (e) is the transmittance. It is explanatory drawing which shows the 3rd example of the transmittance | permeability distribution pattern of a variable filter.
4A is an explanatory diagram showing a first example of how to change the transmittance distribution pattern, and FIG. 4B is an explanatory diagram showing a second example of how to change the transmittance distribution pattern.
5 is a block diagram showing a configuration of a control system of the camera with a flash device shown in FIG. 1. FIG.
FIG. 6 is an explanatory view exemplifying a case where the subject distance in the central region of the angle of view is larger than the subject distances in other regions.
FIG. 7 is an explanatory view exemplifying a case where the subject distance in the central region of the angle of view is smaller than the subject distance in other regions.
FIG. 8 is an explanatory diagram regarding the relationship between the number of flashes of the flash device and the reach distance of the flash light.
[Explanation of symbols]
1 Camera with flash unit
2 Camera body
3 Flash device
3a Light exit window
3b Flash lamp
3c reflector
3d lens
4 Zoom lens
5 Release button
6 Mode setting dial
7 Liquid crystal display device
8u UP button
8d DOWN button
9 Tripod mounting screw
10 Variable transmittance filter
11 Filter setting dial
12 Control unit

Claims (3)

A camera with a flash device including a flash device that emits flash light toward a subject ,
A flash control means for controlling the flash device to emit light a plurality of times during one exposure ;
A transmittance variable filter capable of changing a light transmittance distribution pattern is provided in an emission light path of the flash device or an incident light path of a photographing lens of the camera, and the light transmittance distribution pattern of the transmittance variable filter is provided. A camera with a flash device, comprising filter control means for changing in synchronization with a plurality of times of light emission of the flash device. The camera with a flash device according to claim 1,
A camera with a flash device that performs the control when the flash control unit is set to a long-distance shooting mode for shooting a subject farther than a predetermined subject distance . The camera with a flash device according to claim 1,
Provided with distance detection means for detecting the distance to the subject,
A camera with a flash unit that controls the flash unit so that the flash control unit increases the number of times of light emission during one exposure according to the length of the subject distance according to the subject distance detected by the distance detection unit. .

Images