JPH0822066A - Camera - Google Patents

Abstract

PURPOSE:To provide a camera capable of widely copying with the taste of a user and photographing scenes in the display of a trimming range. CONSTITUTION:A normal (N) size, a high vision (H) size and a panoramic (P) size are freely selected by a trimming selecting switch 9 and one of 'BLACK' for almost shielding a range out of the trimming range from light, 'HALF' for making the range out of the trimming range translucent 'LINE' or displaying only a line for showing the boundary of the trimming range and 'LED' for displaying only an LED showing the boundary of the trimming range is freely selected by the operation of a frame changeover switch 10. A BCPU 7 changes the state of a frame display member 15 with a D/A converter 13 based on the states of the switches 9 and 10, to change the visual field of a finder to the desired one of the user.

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 specifying trimming in which, for example, trimming information at the time of photographing can be written in a magnetic recording layer provided on a film.

[0002]

2. Description of the Related Art Conventionally, by operating a selection switch provided in a camera body, in addition to normal shooting, so-called "trimming size" shooting in which a predetermined range narrower than the normal shooting is set, or so-called "panorama shooting". There have been proposed various technologies relating to cameras in which shooting by "size" can be freely selected. Then, the state of the viewfinder field is also changed based on the selection of each size.

In Japanese Patent Laid-Open No. 5-19368, for example, a viewfinder field corresponding to the trimming size input by the trimming selection switch is provided.
A technique for shielding light outside the trimming range with a liquid crystal display (LCD) or the like is disclosed. In such a conventional example, the display mode showing the trimming range is limited to one type for each trimming state.

[0004]

However, since the display of the trimming range is directly linked to the drawing, it is expected that some users will be nervous about this. That is, for example, with a user who does not need it because it interferes with the drawing outside the trimming range,
It is expected that some users will find it convenient to see outside the trimming range in drawing.

Further, it is possible to switch and use such a plurality of display modes depending on the scene. For example, when photographing a moving subject such as a sports photograph, it is convenient to see the outside of the trimming range. However, in portrait (portrait) and macro photography, there is not much movement, so there is no inconvenience even if you can not see the outside of the trimming range, rather you can not see the outside of the trimming range to grasp the image of the drawing It is also possible that it is preferable.

Further, depending on the user, if the outside of the trimming range is semi-transparent, there is a possibility that the outside of the trimming range can be seen clearly and the outside can not be seen at all for both purposes. .

The present invention has been made in view of the above problems, and an object of the present invention is to provide a camera capable of widely responding to a user's preference and a shooting scene regarding display of a trimming range.

[0008]

In order to achieve the above object, in the camera of the present invention, trimming range designating means for designating a trimming range in a camera capable of recording trimming information at the time of printing on a film surface, Based on the trimming range display means for displaying the trimming range in the viewfinder field according to the input of the trimming range designating means, the display mode selecting means for selecting the display mode of the trimming range displaying means, and the setting of the display mode selecting means. Display mode changing means for changing the display mode of the trimming range display means.

[0009]

That is, in the camera of the present invention, the trimming range designating means designates the trimming range, the trimming range displaying means displays the trimming range in the viewfinder field in response to the input of the trimming range designating means, and the display mode selecting means. Thus, the display mode of the trimming range display means is selected, and the display mode of the trimming range display means is changed by the display mode changing means based on the setting of the display mode selecting means.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 1 is a diagram showing a configuration of a camera according to a first embodiment of the present invention. As shown in the figure,
The camera of this embodiment includes a taking lens barrel 100 and a camera body 200.
00 is detachable from the camera body 200. When this photographing lens barrel 100 is mounted on the camera body 200, the electrical contact groups 4 and 5 are connected to each other, and the lens CPU (hereinafter abbreviated as LCPU) 2 inside the photographing lens barrel 100 and the inside of the camera body 200. Camera body C
A PU (hereinafter abbreviated as BCPU) 7 is connected via communication line groups 3 and 6, and communication between them is possible.

In the taking lens barrel 100, the LC
A memory M1 that stores in advance lens-specific data is connected to PU2. LCPU2 is the memory M
The data is appropriately read from the camera body 200 via the communication line groups 3 and 6 and the electrical contact groups 4 and 5
To the BCPU 7 inside.

On the other hand, in the camera body 200, BC
Various operation switches 8 to 11 are connected to the PU 7. That is, reference numeral 8 is a release button, which is pressed halfway to turn on the 1st release switch,
The nd release switch is turned on and the BCPU 7 executes the shooting sequence. Reference numeral 9 is a trimming selection switch having an aspect ratio of 1: 1.
5, normal (N) size, aspect ratio 1: 1.8
High definition (H) size, aspect ratio is 1: 2.
8 panorama (P) sizes can be selected by the switch 9. Reference numeral 10 is a frame change switch for changing the display mode of the frame for displaying the trimming range in the finder. By operating the switch 10, "BLACK" that substantially shields the light outside the trimming range,
"HALF", which makes the outside of the trimming range semi-transparent, and "LIN, which displays only the line that indicates the boundary of the trimming range
Either "E" or "LED" that displays only the LED indicating the boundary of the trimming range can be selected. Sign 1
Reference numeral 1 denotes a main switch, which can be operated / not operated by operating the switch 11.

The layout of each of these switches 8-11 is shown in FIG. A release button 8 and a main switch 11 are arranged on the upper right of the camera body 200, a frame switch 10 is arranged on the upper left of the pentaprism, and a trimming selection switch 9 is arranged on the upper left of the camera body 200. . The switches 9 to 11 are of a slide selection type. However, the arrangement and selection method of these switches are not limited to this, and various other types can be adopted.

A magnetic head 12 is connected to the BCPU 7 via a magnetic head driver 21. The magnetic head driver 21 drives the magnetic head 12 on the basis of a signal from the BCPU 7, and the base film BF0
Various kinds of information including information on trimming size are written to the magnetic material.

The structure of the base film BF0 is shown in FIG. The base film BF0 is provided with two perforations 301 per frame,
A frame interval is detected from the perforation. A range A0 indicates a region where the image formed by the taking lens 1 is constantly exposed. When the panorama (P) size is selected by the trimming selection switch 9, the BCPU
7 is a base film B so that only the area AP in FIG. 3A is printed by the magnetic head 12.
The identification information is written on the magnetic substance applied to F0. Similarly, when the high-vision (H) size is selected by the trimming selection switch 9, the area AH in FIG. 3B is selected, and when the normal (N) size is selected, the area in FIG. 3C is selected. An identification signal is written on the magnetic material coated on the film BF0 so that each AN is printed.

A frame display member 15 is connected to the BCPU 7 via a D / A converter 13. The frame display member 15 is made of variable transmittance glass whose light transmittance changes according to an applied voltage. B
The CPU 7 changes the applied voltage via the D / A converter 13 based on the selection of the frame changeover switch 10 to change the state of the frame display member 15.

The detailed structure of the frame display member 15 is shown in FIG. In each of the patterns P11 to P56, a transparent electrode and a transmittance varying member are independently sealed, and a pair of terminals are output to the outside. When a voltage is applied between the terminals, the transmittance changes according to the voltage. Of the patterns P11 to P56, P11 to P14
The electrodes are commonly used as the four corner surfaces. In the patterns P21 and P22, the electrodes are commonly used as the upper end surface and the lower end surface. In the patterns P31 and P32, the left end face and the right end face have common electrodes. The patterns P41 and P42 are used as a normal size trimming range boundary line, and the pattern P51 is used.
P56 is a panoramic size boundary line, and each electrode is shared. One of the electrodes thus assembled is grounded, and the other is connected to the output terminals CH1 to CH5 of the D / A converter 13. B
The voltage of each channel can be set independently by an instruction from the CPU 7.

On the other hand, as shown in FIG. 4, LEDs 20a to 20h are arranged at the end of the boundary line, and LE 20a to 20h are arranged.
D20a, 20b, 20e, 20f and LED 20c, 2
The terminals of 0d, 20g, and 20h are common. When the output signals of the terminals P1 and P2 of the BCPU 7 are set to the low level “L”, the transistors Tr1 and Tr2 in the LED driver 19 are turned on, and each of the LEDs 2
0a to 20h are adapted to emit light.

Further, in the configuration of the optical system, a main mirror MM is disposed on the optical path of the light from the taking lens 1, and the viewfinder screen 14 and the frame are provided on the optical path of the light reflected by the main mirror MM. A penta prism 17 is arranged via the display member 15 and the condenser lens 16. A finder eyepiece 18 is provided on the optical path of the light reflected by the reflecting surface of the pentaprism 17, and the subject light is guided through the finder eyepiece 18 to the photographer's eyes. Further, a base film BF0 is arranged on the rear surface of the main mirror MM.

Next, the display of the trimming range in the finder field corresponding to each trimming size will be described.
5 to 8, (a) shows the trimming selection switch 9 when the high-definition (H) size is selected, (b) shows the trimming selection switch 9 when the normal (N) size is selected, and (c) shows the trimming selection switch. Reference numeral 9 shows the viewfinder field when the panorama (P) size is selected.

First, the frame changeover switch 10 is set to "BLA.
When it is set to "CK", as shown in FIG. 5, the light is shielded almost completely outside the trimming range, and the image cannot be seen. That is, FIG. 5A shows the case where the high-definition (H) size is selected, and CH1 to CH5 of the D / A converter 13 are 0V. Fig. 5 (b) shows CH when normal (N) size is selected.
1, CH3, CH4 are 1.5V, others are 0V, P11
~ P14, P31, P32, P41, P42 become almost opaque.
Furthermore, FIG. 5C shows C when the panorama (P) size is selected.
H1, CH2 and CH5 are 1.5V, others are 0V and P
11 to P14, P21, P22, P51 to P56 are almost opaque.

Then, the frame changeover switch 10 is set to "H".
When "ALF" is set, the outside of the trimming range is semi-transparent and the image looks dark as shown in FIG. "BL
Channel CH that was 1.5V compared to when ACK was selected
1, CH2 and CH5 are 0.5 V, which makes the outside of the trimming range semi-transparent.

Further, the frame changeover switch 10 is set to "L".
When set to "INE", only the line indicating the boundary of the trimming range is displayed as shown in FIG. In this case, only the channels CH4 and CH5 are at 1.5V.

Further, the frame changeover switch 10 is set to "LE
When it is set to “D”, as shown in FIG. 8, the LED indicating the boundary of the trimming range lights up outside the visual field.
Therefore, since the display corresponding to "BLACK" as shown in FIG. 5 cannot be seen outside the trimming range, the finder image is almost the same as the finished work, and it is easy to grasp the image when taking a still object. On the other hand, the display corresponding to "LINE" as shown in FIG. 7 is well visible outside the trimming range, and is therefore suitable for shooting while following a moving body. Further, the "HALF" shown in FIG. 6 is intermediate between the above two types and does not perform frame switching, so that it is suitable for a user who wants to photograph many types of subjects. Then, in the LED display shown in FIG. 8, since only the image of the photographing lens does not appear in the field of view, the details of the image can be seen well, and since the image is displayed by the light emitter, under low luminance,
It is easier to see than the frame display by the light shielding member as shown in FIG.

As described above, in the camera according to the first embodiment, the four frame display modes as described above can be selected, so that various camera environments can be accommodated. Next in FIG.
The configuration of the camera according to the second embodiment will be shown and described below.

The structure of the present embodiment is almost the same as the structure of the camera according to the first embodiment described above, except that a photometric element lens l1, a photometric element SPD1 and an amplification section AMP1 are provided. ing. The SPD1 is a splitting element and can independently measure the areas AG1 to 4 and AI0 to 4 shown in FIG. As a result, when the frame changeover switch 10 is set to "HALF", the appearance of the semi-transparent light-shielding portion can be seen by photometry such as AG1 and AI1 even if the luminance distribution in the central portion and the peripheral portion of the subject is uneven. It can be detected by the difference between the values. For example, when the central area shown by PC is dark and the surrounding area is bright, the difference between AG1 to AG4 and AI1 to AI4 is small compared to the case of uniform brightness, while the central area shown by PC is bright and the surrounding area is bright. AG1-AG4 and AI1 compared to the case of uniform brightness when dark
The difference between AI4 and AI4 becomes large. AG1 to AG4 and AI1
When the difference between AI4 and AI4 is small, the translucent part looks bright, so the voltage applied to this part is increased to make it darker. On the other hand, when the difference between AG1 and AG4 is large, the translucent part is visible. Since it looks dark, the voltage applied here is lowered to make it brighter.

Referring to the flowchart of FIG. 11, the frame changeover switch 10 in the second embodiment will be described below.
The operation of the BCPU 7 when is set to "HALF" will be described. Frame switch 10 is "HALF"
And the trimming selection switch 9 is set to either "P" or "N" (step S
1), the brightness of AG1 to AG4, AI1 to AI4 is measured, and AG1 and AI1, AG2 and AI2, AG3 and A are measured.
The difference between each point of I3, AG4 and AI4 is detected (step S2). Then, the average of the four sets of differences is calculated (step S3), and it is checked whether this is 2 EV or less (step S4). If it is 2 EV or less, the applied voltage (channel not 0 V) is increased (step S7). , And returns to step S4.

On the other hand, when the brightness difference is not 2 EV or less, 3E
It is determined whether the brightness difference is 3 EV or more (step S5).
If it is above, the applied voltage (channel not 0V) is lowered (step S6). Then, the process returns to step S4.

If the difference is not 3 EV or more in step S5, it is checked whether the frame changeover switch 10 is still set to "HALF" (step S8), and still "H" is set.
If it is set to "ALF", the process proceeds to step S102, and if it is not "HALF", all the operations are finished (step S109).

As described above, according to the camera of the second embodiment, even if the brightness distribution in the viewfinder is non-uniform, the semi-transparent portion always looks the same darkness, which makes the user feel uncomfortable. Do not give.

Next, a camera according to the third embodiment will be described. The configuration of the camera according to the present embodiment is similar to the configuration of the camera according to the second embodiment described above, but the frame display mode at low brightness is different. That is, in this embodiment, the frame changeover switch 10 is set to "BLACK", "HAL".
When it is set to three of "F" and "LINE", and when the brightness of AI0 shown in FIG. 10 is EV5 or less,
As shown in FIG. 12, the LED is also turned on to display the frame.

According to the third embodiment, the frame can be surely recognized even when the image in the finder is dark and the frame display is difficult to see. As described above in detail, with the camera of the present invention, it is possible to provide a camera that can widely correspond to the user's preference and shooting scene regarding the display of the trimming range.

According to the embodiment of the present invention as described above, the following structure can be obtained. That is, (1) in a camera capable of recording trimming information at the time of printing on a film surface, trimming range designating means for designating a trimming range and the trimming range in the viewfinder field are displayed according to the input of the trimming range designating means. Trimming range display means, display mode selection means for selecting a display mode of the trimming range display means, and display mode changing means for changing the display mode of the trimming range display means based on the setting of the display mode selection means, A camera comprising: (2) In the above (1), the trimming range display means shields the viewfinder field outside the trimming range. (3) In the above item (2), the display mode changing means changes the transmittance in the light-shielded portion outside the trimming range. (4) In the above (3), further, detecting means for detecting a difference in brightness between the trimming range and the outside of the trimming range, and a transmittance change for changing the transmittance of the light-shielded portion based on the detection value of the detecting means. And means. (5) In the above (1), the display mode changing means is
The finder field outside the trimming range is displayed as a surface or the trimming range is displayed as a boundary line. (6) In the above (1), the display mode changing means is
The trimming range is displayed with a border line or the outside of the trimming range is shielded from light. (7) In the above (1), the display mode changing means is
Either the trimming range is displayed with a boundary line or the boundary of the trimming range is displayed with a light emitting member. (8) In the above (1), the display mode changing means is
Either the light is cut off from the trimming range or the border of the trimming range is displayed by a light emitting member. (9) In either (6) or (8) above,
When the trimming range is shaded, the display mode changing means can change the transmittance of the shaded range. (10) In any one of the above items (6) to (8), the display mode changing means changes the display mode depending on the brightness in the viewfinder field. (11) In the above (7) or (8), the display mode changing means performs the display by the light emitting member according to the brightness within the viewfinder field. (12) In (1) above, the display mode changing means selects whether the display is to be displayed within the screen field of view of the finder or outside the screen field of view.

[0034]

According to the present invention, it is possible to provide a camera in which the display of the trimming range in the viewfinder can be switched and the viewfinder field can be widely adapted to the user's preference and shooting scene.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a camera according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a layout of switches 8 to 11.

FIG. 3 is a diagram showing a structure of a base film BF0.

FIG. 4 is a diagram showing a detailed configuration of a frame display member 15.

FIG. 5 is a view showing a state of a viewfinder field when the frame changeover switch is set to “BLACK”.

FIG. 6 is a diagram showing a state of a viewfinder field when the frame changeover switch is set to “HALF”.

FIG. 7 is a diagram showing a viewfinder field when the frame changeover switch is set to “LINE”.

FIG. 8 is a diagram showing a state of a viewfinder field when the frame changeover switch is set to “LED”.

FIG. 9 is a diagram showing a configuration of a camera according to a second embodiment.

FIG. 10 is a diagram showing areas in which light can be independently measured by the SPD 1 in the second embodiment.

FIG. 11 is a BCPU 7 when the frame changeover switch 10 is set to “HALF” in the second embodiment.
3 is a flowchart showing the operation of FIG.

FIG. 12 is a diagram showing a finder field according to a third embodiment.

[Explanation of symbols]

1 ... Shooting lens, 2 ... Lens CPU, 3, 6 ... Electrical contact group, 4, 5 ... Communication line group, 7 ... Body CPU, 8 ... Release button, 9 ... Trimming selection switch, 10 ... Frame changeover switch, 11 ... Main switch, 12 ... Magnetic head, 13 ... D / A converter, 14 ... Finder screen, 15 ... Frame display member, 16 ... Condenser lens, 17 ... Penta prism, 18 ... Finder eyepiece, 19 ... LED driver, 20 ... LED, 21 ... Magnetic head driver, M1, M2 ... Memory, MM ... Main mirror, BF0 ... Base film.

Claims (1)

[Claims] 1. A camera capable of recording trimming information at the time of printing on a film surface, a trimming range designating means for designating a trimming range, and a trimming range in a viewfinder field is displayed in response to an input of the trimming range designating means. Trimming range display means, display mode selection means for selecting a display mode of the trimming range display means, and display mode changing means for changing the display mode of the trimming range display means based on the setting of the display mode selection means, A camera comprising: