JPH06258707A - camera - Google Patents

Abstract

(57) [Abstract] [Purpose] A camera that allows you to easily change the shooting field of view while looking through the viewfinder, and at the same time make it easy to check the composition. [Structure] The system waits until the photometry / distance measurement start switch 6 (SW1) is pressed (S101). When the photometry / distance measurement start switch 6 (SW1) is pressed, AE (photometry) calculation is performed (S102). Next, AF (automatic focus adjustment) is performed (S103). After that, exposure start switch 7 (SW2)
If is not pressed, the display of the aspect ratio is switched by the switch 13 (S105), and the process returns to S101. When the exposure start switch 7 (SW2) is pressed in S104, the film is exposed (S10
6) Then, the information of the currently displayed aspect ratio is written on the film (S107), and the process returns to S101.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera capable of selecting one from a plurality of photographing fields of view.

[0002]

2. Description of the Related Art Conventionally, in a camera having a switching function of the field of view for photographing, when changing the field of view, it is switched by a dedicated selector switch or an input means which also serves as another input, and the switched field of view for photographing is switched. It is known to display by display means.

[0003]

However, in the above-mentioned conventional example, when it is necessary to switch the field of view after confirming the composition in the finder, it is difficult to switch the field of view while looking through the finder. .

The present invention has been made to solve such a conventional problem, and it is an object of the present invention to provide a camera capable of easily changing the photographing field of view while looking through the viewfinder and at the same time, confirming the composition. To aim.

[0005]

In order to achieve the above object, the camera of the present invention has a means for switching a plurality of photographing fields of view in claim 1 and a means for displaying the switched photographing fields of view in a viewfinder. In the camera, means for automatically and repeatedly displaying selectable fields of view on the display means according to the state of the first photographing sequence;
And a means for selecting the field of view displayed at that time as a field of view for shooting in accordance with the state of the shooting sequence, and the field of view can be switched. A means for automatically and repeatedly displaying a field of view selectable on the display means in accordance with the state of the sequence; and a field of view which is currently displayed as a field of view for photography in accordance with the state of the second imaging sequence. 1 mode and a second mode for continuing the field of view selected before the first imaging sequence, and means for selecting the first mode and the second mode,
Further, the state of the first shooting sequence is one of opening / closing the main switch, opening / closing the photometric switch, changing the focal length of the lens, changing the posture of the camera, and opening / closing the back lid. , A means for displaying the field of view on the display outside the camera at the same time as the display in the viewfinder, and the state of the second shooting sequence is
Either the main switch is opened / closed, the photometric switch is opened / closed, the exposure start switch is opened / closed, or the AE lock switch is opened / closed.

[0006]

In order to achieve the above-mentioned object, the camera of the present invention automatically and repeatedly displays a plurality of photographing fields of view in the viewfinder, and changes the photographing sequence to determine the field of view being displayed at that time. By providing the means, it is possible to easily switch the field of view and check the composition while looking through the viewfinder.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a mask for display in a viewfinder of a photographing field of view. FIG. 1A shows an aspect ratio of about 1: 1.
8 is a view showing a visual field “H” when the finder of FIG. 8 is not masked. FIG. FIG. 11B is a view showing the visual field “L” when the finder is masked in the horizontal direction with an aspect ratio of 1: 1.5. FIG. 11C is a view showing the visual field “P” when a mask in the vertical direction of the finder is used with an aspect ratio of 1: 2.8.

Information indicating that the aspect ratio is "H", "L", or "P" is recorded in the information storage section corresponding to each frame of the film, and printing is performed according to the information when printing. As a result, a print having a desired aspect ratio can be obtained.

FIG. 2 shows aspect ratio information recorded on the film used in the present invention. Figure 2
(A) shows the case where all the one films were photographed at the same aspect ratio. Also, FIG.
Shows a part of the film when images are taken in the same film with different aspect ratios.

As shown in FIG. 2B, the eleventh frame to the twelfth frame have the format "H", the thirteenth frame has the format "P", and the fourteenth to sixteenth frames have the format "H" again. This is an example of shooting at "H".
Also in this case, the area exposed on the film is the largest of the three aspect ratios (in this case, the “H” format), and the type of aspect ratio (H, L) is stored in the information storage unit corresponding to each frame. , P) is recorded as information. A desired print can be obtained by reading this information (type of aspect ratio) at the time of printing and printing at an aspect ratio corresponding to the information.

FIG. 3 is a perspective view showing a schematic internal structure of a camera of one embodiment of the present invention. In FIG. 3, R is a feeding photoreflector that detects the perforation P of the film F and feeds the film at a constant distance, M is a film feeding motor arranged in a spool, and G is deceleration and winding. A gear train for switching rewinding, K is a rewinding fork, C is a film cartridge, F is the above-mentioned film with a magnetic layer coated on the base side, and T is data such as an exposure status frame number recorded as magnetic information. Magnetic track (magnetic storage unit), P is the perforation corresponding to the photographic screen, H is a magnetic head for writing and reading information on the magnetic track T on the film F, and D is the magnetic head H for the film F. It is a pressure bonding pad that is pressed against.

FIG. 4 is a block diagram showing an embodiment of the present invention. In FIG. 4, 1 is a microprocessor that controls the camera, 2 is a photometric circuit, and 3 is a photometric circuit.
Is a distance measuring circuit, 4 is a shutter control circuit, 5 is an aperture control circuit, and these are all configured by known circuits. Reference numeral 6 is a photometry / distance measurement start switch (SW1), 7 is an exposure start switch (SW2), and these switches are turned on in the first stroke and the second stroke of the same switch, respectively. Reference numeral 8 is a main switch, 9 is a magnetic recording circuit for writing information on the film, 10 is a magnetic head (H in FIG. 3), 11 is a back lid opening / closing detection switch, 12 is an AE lock switch for fixing the exposure, 13 Is a switch for switching to the fixed mode of the visual field, and the fixed mode and the selection modes of H, L, and P are alternately changed with each push,
The selected mode is displayed by the display circuit 21.
14 is a switch for detecting the attitude of the camera, 15 is a motor drive circuit for feeding the film 16, 17 is a motor (M in FIG. 3), 18 is a communication circuit with a lens, 19 is a cartridge detection switch, 20 Is a film number reading unit for reading the number of films recorded in a film cartridge by a bar code or the like, and 21 is an external display of the number of frames, shutter control values, aperture values, etc. in addition to the display of the selected field of view described above. This is a display circuit that also includes the display.

FIG. 5 is a flow chart showing the basic operation of the microprocessor 1 according to the first embodiment of the present invention. In the operation of FIG. 5, first, the process waits until the photometry / distance measurement start switch 6 (SW1) is pressed (step 101, hereinafter step is abbreviated as S). When the photometry / distance measurement start switch 6 (SW1) is pressed, AE (photometry) calculation is performed (S102). Next, AF (automatic focus adjustment)
Is performed (S103). After that, the exposure start switch 7 (S
If W2) is not pressed (S104), the display of the aspect ratio is switched (S105), and the process returns to S101.
When the exposure start switch 7 (SW2) is pressed in S104, the film is exposed (S106),
Write the aspect ratio information currently displayed on the film (S1
07), and returns to S101.

FIG. 6 is a flow chart showing the operation of the second embodiment of the present invention. In FIG. 6, first, on / off of the main switch is detected (S201), and if it is off, the process returns to S201 and waits here until it is turned on. When the main switch is turned on, S20
In step 2, whether or not the main switch has just switched from off to on is detected by a known means, and if it has just switched, a timer is started (S204).
When the main switch comes to S203 with the main switch kept on in S202, the open / closed state of the back cover is checked here, and if the back cover changes from open to closed, the timer is started (S20).
4) If the back cover has not changed, S204 is not executed.
Next, ON / OFF of the photometry / distance measurement start switch 6 (SW1) is detected (S205), and the photometry / distance measurement start switch 6 (S) is detected.
If W1) is off, clear the AE lock flag (S
221), it is checked whether the timer of S204 has reached the predetermined time (S206). If the timer has not reached the predetermined time, the AE lock flag is cleared (S215).

Next, it is checked whether or not the field of view is in the fixed mode (S219). If it is not the fixed mode, the aspect ratio display is switched (S220), but if it is the fixed mode, the aspect ratio display is not switched. Then, the process returns to S201. Further, when it is checked in S206 whether the timer has reached the predetermined time, if the predetermined time has been reached, the process returns to S201. The operation up to this point is S201, 202, 204, 2 when the main switch is turned on when the field of view is not fixed.
05, 221, 206, 215, 219, 220 and the second and subsequent steps, S201, 202, 203, 20
5, 221, 206, 215, 219 and 220 are repeatedly executed to sequentially change the field of view. When the timer reaches a predetermined time, S201, 202, 203, 205, 2
The operations in steps 21 and 206 are repeatedly executed, and the field of view does not change. When the visual field fixing mode is set, S220 is bypassed by S219 and the visual field does not change at all.

Also, the photometry / distance measurement start switch 6 (SW
When 1) is on, the AE lock flag is inspected (S207). If it is not AE lock, photometry and calculation are performed (S208), and if it is AE lock, S208 is skipped. Next, AF (automatic focus adjustment) is performed (S20
9), inspect the exposure start switch 7 (SW2) (S2
10). If the exposure start switch 7 (SW2) is turned on, the film is exposed (S211), and the information of the aspect ratio currently displayed is written on the film (S21).
2) and returns to S201.

Further, in S210, when the exposure start switch 7 (SW2) is off, the change in the focal length (ZOOM) of the lens (S213) and the change in the camera attitude are checked (S214). If it hasn't changed,
The AE lock flag is inspected (S216). If the AE lock flag is 1, the process returns to S201. If the AE lock flag is 0, the AE lock switch is inspected (S217).
If the E lock switch is on, the AE lock flag is set and the process returns to S201. Also, the lens focal length (ZOO
When there is a change in M) or the camera posture,
After clearing the AE lock flag (S215), S2
Proceed to 19. In the inspection of the AE lock switch, the process proceeds to S219 even when the switch is off. In the case of multi-point distance measuring, if there is a distance measuring point selecting means, the aspect ratio changing sequence may be activated by this. Further, if there is a line-of-sight input means, it may be possible to change and determine the aspect ratio.

[0018]

As described above, the present invention has an effect that the field of view can be switched by a simple operation while confirming the composition. Furthermore, by providing a mode for fixing the field of view for photographing and making it selectable, it is effective when the field of view fixed mode is selected and the images are continuously photographed in the same field of view.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a finder display with a plurality of aspect ratios.

FIG. 2 is a diagram showing aspect ratio information recorded on a film.

FIG. 3 is a perspective view showing a schematic internal configuration of a camera used in the present invention.

FIG. 4 is a block diagram showing a first embodiment of the present invention.

5 is a flowchart showing the operation of the microprocessor in the embodiment of FIG.

FIG. 6 is a flowchart showing the operation of the second exemplary embodiment of the present invention.

[Explanation of symbols]

 1 Microprocessor 9 Magnetic Recording Circuit 10 Magnetic Head 14 Camera Attitude Detection Circuit 15 Motor Drive Circuit 16 Film 17 Motor 18 Lens Communication Circuit

Claims (12)

[Claims] 1. A camera having a means for switching a plurality of photographing fields of view and a means for displaying the switched photographing fields of view in a viewfinder, wherein a field of view selectable on the display means is selected according to the state of the first photographing sequence. A means for automatically and repeatedly displaying and a means for selecting the field of view displayed at that time as a field of view according to the state of the second shooting sequence are provided, and the field of view can be switched. A camera to do. 2. A camera having a means for switching a plurality of photographing fields of view and a means for displaying the switched photographing fields of view in a viewfinder, wherein a field of view selectable on the display means is selected according to the state of the first photographing sequence. Means for automatically and repeatedly displaying, a first mode for selecting the field of view currently displayed as a field of view according to the state of the second shooting sequence, and a field of view selected before the first shooting sequence And a means for selecting the first mode and the second mode to enable switching of the visual field of view. 3. The camera according to claim 1, wherein the state of the first shooting sequence is opening / closing of a main switch. 4. The camera according to claim 1, wherein the state of the first photographing sequence is opening / closing of a photometric switch. 5. The camera according to claim 1, wherein the state of the first shooting sequence is a change in the focal length of the lens. 6. The camera according to claim 1, wherein the state of the first shooting sequence is a change in posture of the camera. 7. The camera according to claim 1, wherein the state of the first photographing sequence is presence / absence of opening / closing of a back lid. 8. The camera according to claim 1 or 2, further comprising means for displaying the field of view on the display outside the camera at the same time as the display in the viewfinder. 9. The camera according to claim 1, wherein the state of the second shooting sequence is opening / closing of a main switch. 10. The camera according to claim 1, wherein the state of the second photographing sequence is opening and closing of a photometric switch. 11. The camera according to claim 1, wherein the state of the second photographing sequence is opening / closing of an exposure start switch. 12. The camera according to claim 1, wherein the state of the second shooting sequence is opening / closing of an AE lock switch.