JPH01202721A - Camera - Google Patents

Abstract

PURPOSE:To eliminate operation setting for stroboscopic flashing or its release and to simultaneously take photographs with stroboscopic flashing by continuous ly carrying out stroboscopic and normal AE photographing actions in one photographing operation. CONSTITUTION:The camera incorporates, as control sequence, a continuous photographing means which continuously carries out the stroboscopic photographing action and the normal AE photographing action thereafter. The stroboscopic photographing action is such that, when a sequence control circuit 12, which controls the whole operation of the camera, obtains from a photometry circuit 3 either the back light of a main object or a photometric output below the level of the specified stroboscopic photographing brightness which is previous ly set, photographing is performed while a stroboscopic device 9 is flashed by means of a stroboscope driving circuit 8. The normal AE photographing action is such that; without stroboscopic flashing, photographing is performed by setting an appropriate diaphragm and appropriate shutter speed by means of an automatic exposure control circuit 1. Thus, both photographs with strobo scopic flashing and without it are taken at the same time, thereby eliminating the operation setting for a stroboscopic flashing mode or its release.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a camera that automatically controls strobe light emission based on the photometric output of a subject.

[Prior Art] Conventionally, cameras are known that measure the brightness of a subject and automatically control strobe light emission. The strobe @shadow operation is performed automatically, and without the need for a strobe light selection operation, it is possible to take appropriate photographs without failure even with dark subjects.

[Problems to be Solved by the Invention] However, in such conventional cameras, strobe light emission control is performed automatically, so when you want the strobe to fire due to backlight etc., the strobe may not fire or the strobe may not fire when the strobe is backlit. Even when you do not want to take a photo with the strobe lit, the strobe may fire and a photo may be taken that is contrary to the photographer's intention.

In such a case, after performing a switching operation to a mode in which the strobe is emitted or a mode in which the strobe is not emitted, it is necessary to repeat the enemy's shadow again, and there is a problem in which a photo opportunity is missed during this time.

The present invention has been made in view of these conventional problems, and makes it possible to simultaneously present a photo with strobe light and a photo without strobe light, without the need for setting or canceling strobe light. The purpose is to provide cameras.

[Means for Solving the Problems] In order to achieve this object, the present invention includes an automatic exposure control means, a photometering means for metering the subject brightness, a film winding means for winding the film by a motor drive, and the above-mentioned. In a camera having a strobe means that is automatically driven to emit light based on the photometric output of the means, there is a strobe shadow operation caused by the light emission drive of the strobe means and a normal AE.
A continuous photographing means is provided for continuously performing ratiometric shadowing operations in an appropriate order by one i-shading operation.

This continuous photographing means performs a continuous photographing operation when the photometry means obtains a photometric output that is backlit to the main subject or below the strobe photographing brightness level (for example, EV=9 or less) in the strobe photographing mode setting state.

Further, the continuous shooting means performs a continuous shooting operation in response to a continuous shooting mode setting operation by a photographer.

Furthermore, even in the normal shooting mode, the continuous shooting means can shoot against backlight, below a predetermined brightness, or within a predetermined brightness range (e.g. EV=6~
11), the continuous shooting operation may be performed automatically.

[Function] In the camera of the present invention having such a configuration, normal AEili shadowing is automatically performed at the same time as strobe photography, so photos with strobe light emission and photos without strobe light emission can be taken at the same time. Since there is no need to set or release the strobe light mode, there is no need to miss a photo opportunity, and it is possible to choose between the two photos obtained as a result of the enemy shadow according to the photographer's preferences and intentions. You can select the appropriate photos.

[Example] FIG. 1 is a block diagram showing one embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes an automatic exposure control circuit, in which a photometric signal of the subject obtained from a photometric circuit 3 to which a photometric element 2 is connected as an input is transmitted to an aperture setting section 4 and a shutter speed setting section. Exposure calculation is performed based on the shutter speed set by No. 5, and an appropriate aperture signal obtained by this exposure calculation is output to the aperture mechanism 6, and an appropriate shutter speed signal is output to the shutter mechanism 7.

8 is a strobe drive circuit; 9 is a strobe device driven to emit light by the strobe drive circuit 8; The light emission is driven by the photographing operation when the strobe light is emitted, and the light emission drive is stopped when an appropriate amount of light is obtained by this strobe light emission.

Furthermore, 10 is a motor drive circuit that drives the film winding motor 11, and one @
At the end of the Shochoku film, the film winding motor 11 is driven to advance the film one frame. Of course, the motor drive circuit 10 performs a blank feed to send the film to the photographing start position when loading the film, and rewinds the film when the end of the film is detected.

12 is a sequence control circuit that controls the entire camera operation, and includes a release mechanism 13 and a shooting mode setting switch 14.
, and a display section 1 for displaying shooting information in the viewfinder, etc.
5 is connected.

Furthermore, in the present invention, when the photometry circuit 3 provides the sequence control circuit 12 with a photometry output that is less than or equal to the backlight of the main subject or a predetermined strobe photography brightness level, the strobe drive circuit 8 controls the strobe. Following the strobe photography operation in which the device 9 emits light to take a picture, normal AE performs photography without flashing the flash and setting the appropriate aperture and shutter speed by the automatic exposure control circuit 1! ! Continuous shooting means for continuously performing shadow operations is incorporated as a control sequence.

The strobe photography operation and AE! are automatically performed based on the backlight or photometry output from the photometry circuit 3 that is below the strobe photography brightness level. l! In addition to the shadow motion continuous shooting function,
Furthermore, by manually setting the continuous shooting mode using the shooting mode setting switch 14, strobe shooting operation and AE@
This allows shadow movements to be performed at the same time.

Furthermore, the display section 15 is provided with a function to display that the continuous shooting mode has been set by the photometry output of the photometry circuit 3 or by the setting operation of the shooting mode setting switch 14.

FIG. 2 is an operation flow diagram when continuous shooting is automatically performed based on the photometric output in the embodiment of FIG. 1, and the camera operation of the embodiment of FIG. 1 will be explained with reference to FIG. Then it becomes as follows.

First, when you press the release button of the camera, the half-press switch provided in the release mechanism 13 is turned on, the camera starts, and the second
An initial state is set in the sequence control circuit 12 for performing the camera sequence shown in the operation flow of the figure.

As shown in step S1 in FIG. 2, the sequence control circuit 12 first determines whether or not the normal photography mode is set by the photography mode setting switch 14. At this time, if the flash photography mode is set by the photography mode setting switch 14, it is determined in step S2 whether a photometry output due to the backlight of the main subject is being obtained from the photometry circuit 3, and then in step S3, the photometry circuit 3 Check whether a photometric output less than the strobe photography brightness is obtained from the output.

Here, if a backlight photometry output is obtained in step S2, or if a photometry output is obtained in step S3 that is below the strobe shooting brightness level, for example, EV=9 or below, two consecutive shots are taken in step S4. The display is displayed, and based on the deep press of the release button, the process proceeds to step S5, where the strobe drive circuit 8 first drives the strobe device 9 to perform a strobe photographing operation, and after the strobe photographing operation in step S5 is completed, the motor drive circuit 10 Film winding motor 1
After winding the film one frame by driving step S6
Proceed to and perform normal AE @ shadow operation without firing the strobe.

On the other hand, when the normal shooting mode is determined in step S1,
Proceed to step S7 and perform normal strobe shooting operation or AE
One photographing operation is performed as one of the photographing operations. Furthermore, if the backlight photometry output is not obtained in step S2 and the brightness is below the strobe shooting brightness level in step S3, the two-shot continuous shooting operation of steps 84 to S6 is not performed and step S
The process proceeds to step 7, where a normal eye-catching operation (one photographing operation) is performed in the same way.

When a subject is backlit that requires strobe firing or a photometry output that is less than the strobe shooting brightness is obtained using the operation sequence shown in Figure 2, the strobe i shadow operation is followed by normal flash operation without strobe firing. Since the continuous shooting operation in which the AE shooting operation is performed at the same time is performed in one shooting operation, if the photographer wants to take a photo with the strobe firing, or conversely, take a photo without the strobe firing. However, you can freely obtain one of the two photos obtained as a result of the photoshoot, and use the strobe light without missing a photo opportunity. It is possible to take photos with and without strobe light at the same time.

FIG. 3 is a flowchart showing an operation sequence when continuous shooting operation is set by manual operation in the embodiment of FIG. 1.

In the operation flow diagram of FIG. 3, since the continuous shooting mode is set in advance by the shooting mode setting switch 14 prior to shooting, when it is determined in step S1 whether or not the normal shooting mode is set, If the continuous shooting mode has been set, the process advances to step S2 to display two consecutive shots on the display section 15, and following the strobe light emitting operation in step S1 based on the deep press operation of the release button, the process proceeds to step S4.
Normal AE8 that does not emit strobe light! Shadow movement is 1
This can be done continuously by controlling enemy shadows twice.

Ml by setting the continuous shooting mode shown in the operation flow in Fig. 3 is effective when it is difficult to judge whether or not the strobe light should be fired due to the condition of the subject. The user can appropriately select a photo that matches his or her preference from among the photos.

The operation flow shown in Fig. 3 is for manually setting the continuous shooting operation, but as another embodiment of the present invention, even in the normal shooting mode, the brightness of the subject is backlit or is set in a predetermined manner. below a predetermined brightness, or even within a predetermined range, e.g.
When V=6 to 11, a continuous shooting operation using a flash photography operation and a normal AE ratio shadowing operation may be performed automatically. In this case, the continuous shooting operation is determined in step S1 in FIG. 3 as to whether it is backlit, the brightness is less than a predetermined brightness, or the brightness is within a predetermined brightness range, and the process proceeds to step S2.

In addition, in the continuous shooting operation shown in the operation flow of Figures 2 and 3, when the strobe shooting operation is finished, the normal AE @ shadow operation is performed immediately after the film is wound. Strobe shooting operation and subsequent AEL
! A predetermined time interval may be set between shadow operations. In this way, strobe shooting operation and AE
If a predetermined time interval is set between the Ilffl shadow operation and the subsequent AEifft shadow operation, for example, after the strobe shooting operation is performed when continuous shooting is performed using the self-timer, There is a predetermined time interval in between, so change the pose during that time and do AEl! You can make shadows act. The continuous shooting display when performing continuous shooting at a predetermined interval during self-timer shooting uses the self-timer display provided on the camera to display the AE performance that is performed after a predetermined time interval after flash photography. By informing the user, it is desirable to be able to change the pose by looking at the continuous shooting display status during the time interval of the AE attack.

[Effects of the Invention] As explained above, according to the present invention, the strobe enemy shadow operation and the normal AE @ shadow operation are performed consecutively in one shooting operation, so it is possible to make the photograph with the strobe light look like a dancer. Whether you want to take a photo that does not use a strobe or, conversely, want to take a photo that does not use a flash, you can select the photo that best suits your preferences and intentions from among the two consecutive photos that were obtained as a result. Furthermore, in the same photo opportunity, you can obtain two photos with different results by firing the strobe and using normal AE photography, especially in cases where it is difficult to know whether or not to fire the strobe based on the subject situation. However, the user can select an appropriate photo from the two continuous shots obtained as a result of dark shadows.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing one embodiment of the present invention; Fig. 2 is an operation flow diagram showing an example of the operation of the embodiment of Fig. 1; Fig. 3 is a block diagram showing an example of the operation of the embodiment of Fig. 1; FIG. 2 is an operation flow diagram showing an operation example. 1: Automatic exposure control circuit 2: Photometering element 3: Acrometer circuit 4: Aperture setting section 5: Shutter speed setting section 6: Aperture mechanism 7: Shutter mechanism 8: Strobe drive circuit 9: Strobe device 10: Motor drive circuit 11: Film winding motor 12 Adjustment control circuit 13 Adjustment mechanism 14: Enemy shadow mode setting switch 15: Display unit Patent applicant Nippon Kogaku Kogyo Co., Ltd.

Claims (7)

[Claims] (1) An automatic exposure control means, a photometry means for measuring subject brightness, a film winding means for winding the film by a motor drive, and a strobe means that is automatically driven to emit light based on the photometric output of the photometry means. The camera is characterized in that it is equipped with a continuous photographing means that continuously performs a strobe photographing operation by driving the strobe means to emit light and a normal AE photographing operation in an appropriate order in one photographing operation. . (2) The continuous shooting means performs a strobe shooting operation and a normal A when a backlight output of the main subject is obtained from the photometry means.
Claim 1 characterized in that the E photographing operation is performed continuously.
Camera listed. (3) The camera according to claim 1, wherein the continuous shooting means continuously performs a strobe photography operation and a normal AE photography operation when a continuous photography mode setting operation is performed. (4) The continuous shooting means is configured to continuously perform a strobe shooting operation and a normal AE shooting operation when a photometry output equal to or less than the strobe light emission brightness is obtained from the photometry means in the strobe light emission mode setting state. The camera according to claim 1, characterized in that: (5) The continuous shooting means is characterized in that, when a photometric output within a predetermined luminance range is obtained from the photometry means, the continuous shooting operation continuously performs a strobe photography operation and a normal AE photography operation. The camera according to claim 1. (6) The continuous shooting means receives an EV value of 6 to 6 from the photometric circuit.
6. The camera according to claim 5, wherein when a photometric output within a range of 11 is obtained, a strobe photographing operation and a normal AE photographing operation are performed successively. (7) The camera according to claim 1, wherein the continuous shooting means sets a predetermined time interval between a strobe photography operation and a subsequent normal AE photography operation.