JP2003114469A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make easily and instantaneously confirmable where consecutive photographing has been performed on developed film even when the similar scenes are consecutively photographed. SOLUTION: This camera has a film feeding means for feeding the film, a signal generating means for generating a signal equivalent to the feed amount of the film fed by the film feeding means, a feeding control means for controlling the feed amount of the film required until the photographic frame next to a photographic frame reaches the exposure position of the camera based on the signal from the signal generating means, and a setting means for setting whether to perform consecutive photographing or single photographing. The feeding control means makes the feed amount (#113) of the photographic frame when the single photographing is set by the setting means different from the feed amount (#112) of the final photographic frame when the consecutive photographing is set.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a camera having a function of automatically feeding a film.

[0002]

BACKGROUND OF THE INVENTION Most modern cameras using silver salt film are equipped with an automatic film feeding system in which a motor winds the film.

Further, the shooting mode can be set to either single shooting or continuous shooting, and in any setting state, film intervals are set so that the intervals between frames are substantially uniform. Is controlled.

[0004]

However, even if the shooting mode set as described above is single shooting or continuous shooting, the film feeding control is performed so that the shot frame and the next shot frame are even. Therefore, under the condition that the same subject is repeated or similar scenes or subjects are photographed at a predetermined interval, for example, in a sports scene, an attempt is made to compare and photograph consecutive scenes in the same scene such as skiing. When the skier has the same uniform, or if the motorsports are used for continuous shooting by dividing the same car model into laps, if you develop the film and check it in a roll or sleeve state, where There was a case where it was unclear whether the same skier or the car model in which week was taken.

(Object of the Invention) A first object of the present invention is to make it easy to confirm immediately where on a developed film the continuous shooting is performed even when similar scenes are continuously taken. It is intended to provide a camera that can be used for.

A second object of the present invention is to make it possible to easily confirm immediately where on a developed film the continuous shooting is performed even when the same scenes are continuously taken. A camera that allows the photographer to choose whether or not to change the film feed amount, prevents unnecessary film consumption, and allows the operation of the switch member for that selection without impairing the holding property of the camera. It is the one we are trying to provide.

A third object of the present invention is to make it possible to easily confirm immediately where on a developed film the continuous shooting is performed even when the similar scenes are continuously shot. The photographer can choose whether or not to change the film feed amount to prevent unnecessary film consumption, and even when the lens is heavy like a long ball, the switch member for that selection can be used. An object of the present invention is to provide a camera that can be operated without impairing the holding properties of the camera and the lens.

[0008]

In order to achieve the first object, the inventions described in claims 1, 4 and 5 include a film feeding means for feeding a film, and a film feeding means. A signal generating means for generating a signal corresponding to the feeding amount of the film fed, and a film feeding amount until the next photographing frame of the photographing frame reaches the exposure position of the camera on the basis of the signal from the signal generating means. In a camera having a feeding control means for setting and a setting means for setting continuous shooting or single-shot shooting, the feeding control means sets the shooting frame of the shooting frame when the single-shot shooting is set by the setting means. The camera is such that the film feed amount is different from the film feed amount of the last shooting frame in the continuous shooting.

In order to achieve the second object,
The invention described in claims 2, 4 and 5 comprises a film feeding means for feeding a film, and a signal generating means for generating a signal corresponding to the feed amount of the film fed by the film feeding means, Based on a signal from the signal generating means, a feeding control means for controlling the film feed amount until the next photographing frame of the photographing frame reaches the exposure position of the camera, and a setting means for setting continuous photographing or single photographing. In a camera having a switch member arranged in a grip portion of the camera, the feeding control means, when the switch member is operated, photographing when the single photographing is set by the setting means. The film feeding amount of the frame is different from the film feeding amount of the last photographing frame in the continuous photographing.

Further, in order to achieve the third object,
According to the present invention, the film feeding means for feeding the film, the signal generating means for generating a signal corresponding to the feeding amount of the film fed by the film feeding means, and the signal Based on a signal from the generating means, a feeding control means for controlling the film feed amount until the next photographing frame of the photographing frame reaches the exposure position of the camera, a setting means for setting continuous photographing or single photographing, and a lens In a camera having a switch member provided on the side, the feeding control means,
A camera that, when the switch member is operated, causes the film feed amount of the shooting frame when the single shooting is set by the setting unit to be different from the film feed amount of the last shooting frame in the continuous shooting. It is what

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in detail based on the illustrated embodiments.

FIG. 1 is a block diagram showing a main part of an electrical configuration of a camera according to each embodiment of the present invention.

In FIG. 1, reference numeral 1 is a microcomputer (hereinafter referred to as MPU) for performing camera sequence control such as film feeding control, photometry, distance measurement, and display control, and 2 is a first stroke of a shutter button (described below). It is a switch (hereinafter, referred to as switch SW1) that is turned on by half-pressing. When the switch SW1 is turned on, the MPU 1 starts driving the photometry circuit 9 and the distance measurement circuit 10. Reference numeral 3 denotes a switch (hereinafter referred to as switch SW2) which is turned on by the second stroke (full-press) of the shutter button, and the MPU 1 starts the exposure operation at the timing of turning on the switch SW2.

Reference numeral 4 denotes a feeding mode changeover switch, which can select a continuous photographing mode or a single photographing mode. Reference numeral 5 is an AE lock switch for stopping the calculation of the information from the photometric circuit 9 in the MPU 1 and locking the calculation information as it is. Reference numeral 6 denotes a distance measuring point selection switch that can select which distance measuring point (not shown) within the multi-divided distance measuring circuit 10 to perform focusing based on the distance measuring information obtained.
The distance can be selected by operating the dial consisting of the two-phase switch 7 while the distance measuring point selection switch 5 is turned on.

Reference numeral 8 is a display circuit for displaying the set values and photometric values of the camera. Reference numeral 11 is a motor for feeding and rewinding the film, and a motor driver (MDr1) 12 converts a control signal from the MPU 1 into a drive signal to drive and control the motor 11. The film is fed by the forward rotation of the motor 11, and the film rewinding operation is performed by the reverse rotation.

A film feed pulse detection circuit 13 optically reads the perforation of the film when the motor 11 rotates and transmits it to the MPU 1. Reference numeral 14 is a motor that mechanically charges the up / down of the mirror and the shutter 18, and the motor driver (MDd2) 15 converts a control signal from the MPU 1 into a drive signal to control the drive of the motor 14. The forward rotation of the motor 14 raises the mirror, and the reverse rotation causes the mirror to move down and the shutter 18 is mechanically charged.

Reference numeral 16 is a lens connected to the camera,
Focus drive based on information from the distance measuring circuit 10 and aperture drive during exposure are performed. Reference numeral 17 denotes various switches provided on the lens 16, and includes a squeeze switch that narrows down the iris of the lens, an AE lock switch that locks the photometric value of the camera, and the like.

FIG. 2 is an external view of the camera having the above structure.

In FIG. 2, 20 is a camera, 21 is a shutter button, and the switch SW1 of FIG.
Is turned on, and the switch SW2 of FIG. 1 is turned on in the second stroke. 22 is a display unit. Reference numeral 23 is an AE lock button, and when pushed in, the AE lock switch 5 of FIG. 1 is turned on. Reference numeral 24 denotes a distance measuring point selection button, which is operated to turn on the distance measuring point selection switch 6 in FIG. 25
Is a lens attached to the camera 20, 26a, 26b, 2
Reference numeral 6c is a lens switch button, which is connected in parallel to the lens switch 17 of FIG. 1 so that it can be easily operated from any position.

(First Embodiment) FIG. 3 is a flow chart showing the operation of the main part of the camera having the above-described structure according to the first embodiment of the present invention, which will be described below.

When a power switch (not shown) is turned on, M
PU1 starts operation from step # 100, and first, at step # 102, it is determined whether or not the switch SW1 is turned on by the first stroke of the release button 21.
If it is not turned on, it waits at this step. After that, when the switch SW1 is turned on, the process proceeds to step # 102, the photometric circuit 9 is driven to perform the photometric operation, and the photometric information is calculated. Then, in the next step # 103, the distance measuring circuit 10 is driven to calculate the distance measuring information, and the lens 1
The focus information of 6 is calculated, and the lens 16 is focused. In the following step # 104, the display circuit 12 displays the photometric information, the distance measurement information, and other camera information obtained in the steps # 102 and # 103.

In the next step # 105, the release button 2
It is determined whether or not the switch SW2 is turned on by the second stroke of 1. If it is not turned on, step #
Returning to 101, the same operation is repeated thereafter. On the other hand, if the switch SW2 is turned on, the exposure operation after step # 106 is started.

Specifically, when the process proceeds to step # 106,
The motor 14 is rotated in the forward direction to perform the mirror-up operation, and in the next step # 107, the diaphragm operation of the lens 16 is performed.
In the following step # 107, the shutter 18 is opened / closed and the exposure operation on the film is completed.

In the next step # 109, it is determined whether the feeding mode changeover switch 4 is set to the continuous shooting mode or the single shooting mode. As a result, if the continuous shooting mode is set, the process proceeds to step # 110,
It is determined whether or not the switch SW2 is still on, and if it is off, the process proceeds to step # 111 for determining whether or not the continuous shooting mode is the second frame or more. If so, the flow advances to step # 112 to set in the RAM in the MPU 1 so that the film feed amount during film feed is 16 perforations. Then, in the next steps # 114 and # 115, the motor 12 is driven to feed the film until the RAM value (= 16 perforation) is reached.

In step # 109, the single shooting mode is set, or in continuous shooting mode, the switch SW2 remains on in step # 110.
Alternatively, when it is determined in step # 111 that the number of frames is not the second frame or more, the process proceeds to step # 113, and the RAM in the MPU 1 is set so that the film feed amount during film feed is 8 perforations. Set to.
Then, in the next step # 114 and step # 115, the motor 12 is driven to feed the film until the RAM value (= 8 perforation) is reached.

In the following step # 116, it is determined which perforation amount the sheet has been fed. When the sheet is fed with 16 perforations, the process proceeds to step # 117, the value of the film counter is incremented by 2 and set in the RAM.
In the next step # 119, the value is displayed on the display circuit 8 of the camera.
Display at. If the paper is fed with 8 perforations, the process proceeds to step # 118, the film counter value is incremented by 1, and the value is set in the RAM.
At 19 the value is displayed on the display circuit 8 of the camera. After that, the process returns to step # 101, and if the continuous shooting is in progress, the operations after step # 102 are further continued, and if the continuous shooting is completed or the single shooting is performed, the step # 101 or step # 101 is executed.
At 105, it waits until the switches SW1 and SW2 are turned on.

(Second Embodiment) In the first embodiment, the film feed amount (= 1) of the last shooting frame in continuous shooting.
6 perforation) was always different from the film feed amount (= 8 perforation) of the shooting frame during single shooting. However, always performing such control of the film feed amount leads to wasteful consumption of the film.

Therefore, in the second embodiment of the present invention,
Only when the photographer intends (in this embodiment, it is assumed that the AE lock switch 5 is turned on), the film feed amount control as described above is performed. Is. The configuration of the camera is shown in FIG.
2 and FIG.

FIG. 4 is a flowchart showing the operation of the main part of the camera according to the second embodiment of the present invention. Since the operations from the start (# 100) to the shutter drive (# 108) and the film feeding (# 114) to the display (# 119) in the flowchart of FIG. 3 are the same, the description thereof will be omitted.

In FIG. 4, shutter drive (# 108)
When the process is completed, the feeding mode determination (# 109), the determination whether the switch SW2 remains on (# 110), and the determination whether the continuous shooting mode is the second frame or more (# 111) are the same as in FIG. In these steps, the continuous shooting mode,
If the switch SW2 is off and it is determined that the second frame or more is continuously shot, the process proceeds to step # 200.

When the process proceeds to step # 200, it is determined here whether the AE lock switch 5 remains on. As a result, if the AE lock button 23 is pressed and the AE lock switch 5 remains on, step #
In step 112, the RAM is set so that the film feed amount during film feeding is 16 perforations, and the flow proceeds to step # 114 for film feeding.

On the other hand, in steps # 119, # 110,
In # 111 and # 200, it is determined that the single shooting mode is set, the switch SW2 is turned on, the second or more frames of continuous shooting are not set, or the AE lock switch 5 is turned off. In this case, step # 113
Then, the process proceeds to step # 114 in which the film is fed in the RAM so that the film feeding amount is 8 perforations and the film is fed.

FIG. 5 is an image diagram after the film is developed by photographing through the photographing sequence in the first and second embodiments.

In FIG. 5, reference numeral 30 denotes a developed film, which is taken from a to b and c, where a is single shot single shot, b is continuous triple shot, and c is continuous shot. This is the case of shooting two frames.

A1 is a shooting frame of single-shot single frame shooting a, B1 and B
2, B3 are the respective shooting frames in the continuous shooting 3 frames shooting b, B4 are the unexposed frames that have been idle-fed thereafter, C1 and C2 are the respective shooting frames in the continuous shooting 2-frame shooting c, and C3 is the unexposed frame that has been idle-fed thereafter. Shows a piece.

As described above, the first embodiment and the second embodiment
When a film negative is developed by going through the shooting sequence in the above mode, the frame (screen) interval between the continuous shooting 3 frame shooting b and the continuous shooting 2 frame shooting b, the continuous shooting 2 frame shooting b and the next single shooting Alternatively, the interval between the frames for continuous shooting is controlled so that one frame is spaced apart, and is controlled so as to be different from the normal frame (screen) interval during single shooting. Even after continuous shooting at intervals, when you develop the film and check it in a roll or sleeve state (which means that it is separated every 6 frames), you can easily check where it was continuous shooting It will be possible.

An AE corresponding to a switch for selecting whether or not to change the film feed amount in the second embodiment.
Since the lock switch 5 is arranged in the grip portion of the camera, the lock switch 5 can be selected without damaging the holding of the camera.

(Modification) In each of the above-described embodiments, the film feed amount of the single-shot photographing frame (the feed amount between a and b in FIG. 5).
And the feed amount of the shooting frame during the continuous shooting (B1 and B in FIG. 5B)
The feed amount between 2 and the feed amount between B2 and B3) are the same, but these feed amounts may be different. By doing so, it is possible to clarify the switching position of the first shooting frame in single shooting and single shooting.

Further, in the second embodiment described above,
In step # 200 of FIG. 4, the state of the AE lock switch 5 is determined, but other switches (ranging point selection switch, etc.) located on the grip portion of the camera can be used to hold the image at the time of shooting. Will not hurt.

A lens switch 17 (AE lock switch, aperture switch, etc.) provided on the lens 16
The same determination may be carried out with, so that even if the lens is a heavy lens such as a long lens, there is no fear of impairing the holding property.

In the above embodiment, the signal generating means for generating a signal corresponding to the film feed amount is assumed to detect the perforation of the film and generate a pulse signal. The present invention is not limited to this, and means for generating a signal corresponding to the rotation amount of the gear member that is interlocked with the movement of the film, a means for reading magnetic information and generating a signal corresponding to the feed amount of the film, etc. Good.

Further, in order to make the feed amount of the film different, an example of feeding by 8 perforations and feeding by 16 perforations is described, but the present invention is not limited to this, and continuous shooting and single shooting. Any feed amount may be used as long as it is possible to confirm the distinction on the film. However, it is desirable to use a feed amount that does not waste film.

[0043]

As described above, according to the invention described in claim 1, 4 or 5, even when the same scenes are continuously photographed, it is immediately from where to where on the developed film. It is possible to provide a camera capable of easily confirming whether or not continuous shooting is performed.

Further, according to the invention described in claim 2, 4 or 5, even when the same scene is continuously shot,
Let the photographer choose whether or not to change the film feed amount so that it is easy to check immediately where on the developed film what the continuous shooting was,
It is possible to provide a camera which can prevent unnecessary consumption of a film and can operate a switch member for selecting the film without impairing the holding property of the camera.

Further, according to the invention described in any one of claims 3 to 5, even when the same scene is continuously photographed, from where to where immediately after the continuous photographing is performed on the developed film. So that you can easily check
Allows the photographer to choose whether or not to change the film feed amount, preventing unnecessary film consumption, and operating the switch member to select even if the lens is heavy like a long ball It is possible to provide a camera capable of performing the above-mentioned operation without impairing the holding properties of the camera and the lens.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main part of an electrical configuration of a camera according to each embodiment of the present invention.

FIG. 2 is an external view of a camera according to each embodiment of the present invention.

FIG. 3 is a flowchart showing an operation of a main part of the camera of the first embodiment of the present invention.

FIG. 4 is a flowchart showing an operation of a main part of the camera of the second embodiment of the present invention.

FIG. 5 is an image diagram after developing a film taken by a camera according to the first and second embodiments of the present invention.

[Explanation of symbols]

1 MPU 2 switches (SW1) 3 switch (SW2) 5 AE lock switch 6 AF point selection switch 11 Feeding motor 16 lenses 17 Lens switch 23 Shutter button

Claims (5)

[Claims] 1. A film feeding means for feeding a film, a signal generating means for generating a signal corresponding to a feed amount of a film fed by the film feeding means, and a signal from the signal generating means. On the basis of the above, in the camera having a feeding control means for controlling the film feed amount until the next photographing frame of the photographing frame reaches the exposure position of the camera, and a setting means for setting continuous photographing or single photographing, The control means makes the film feed amount of the photographic frame when the single-shot photography is set by the setting means different from the film feed amount of the last photographic frame in the continuous photography. 2. A film feeding means for feeding a film, a signal generating means for generating a signal corresponding to a feed amount of the film fed by the film feeding means, and a signal from the signal generating means. Based on this, a feeding control means for controlling the film feed amount until the next photographing frame of the photographing frame reaches the exposure position of the camera, a setting means for setting continuous photographing or single photographing, and a grip unit of the camera. In a camera having a switch member, the feed control means, when the switch member is operated, the film feed amount of the photographing frame when the single shooting is set by the setting means, and A camera characterized in that the film feed amount of the last photographing frame in continuous photographing is different. 3. A film feeding means for feeding a film, a signal generating means for generating a signal corresponding to a feed amount of the film fed by the film feeding means, and a signal from the signal generating means. Based on this, a feeding control means for controlling the film feed amount until the next photographing frame of the photographing frame reaches the exposure position of the camera, a setting means for setting continuous photographing or single photographing, and a switch member provided on the lens side. In the camera having, the feeding control means, when the switch member is operated, the film feed amount of the photographing frame when the single shooting is set by the setting means, and the continuous shooting A camera characterized in that the film feed amount of the last photographing frame is different. 4. The film feeding control means, when the continuous shooting is set by the setting means, the film feed amount of the last shooting frame of continuous shooting and the film feed amount of the shooting frame in the middle of continuous shooting. The camera according to claim 1, wherein the camera is different. 5. The feeding control means makes the film feed amount of the photographic frame different from the film feed amount of the photographic frame in the continuous photography when the single-photographing is set by the setting device. The camera according to any one of claims 1 to 4, wherein: