JPH09230438A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To confirm the switching of a picture frame size without taking an eye off a finder and to perform the operation of switching the picture frame size even with either hand by providing a scanning member for switching the picture frame size in the nearly central part of the back side of a camera body. SOLUTION: Masks 12 and 13 provided outside the optical path of the finder 2 of the camera are arranged to overlap with each other in the optical axial direction outside the finder 2 and inserted into the optical path from a direction nearly perpendicular to the optical axis of the finder, to cooperatively form a finder visual field. Further, a dial 20 capable of executing the operation of switching a visual field picture frame only with the finger of one holding hand, when the camera body is held with one hand or both hands is provided in the nearly central part of the rear side of an outside case 1. Then, an interlocking gear 18 and a shaft 11 are interlocked with the dial 20, to selectively move the masks 12 and 13 into the optical path of the finder 2.

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 inserting and removing a mask in a finder and displaying a plurality of formats in the finder.

[0002]

2. Description of the Related Art In recent years, a film image has been developed in which a film reader is not exposed from a cartridge. Also,
We propose a system that allows you to change the shooting format (screen size, shape), record the information magnetically or optically (such as by imprinting dots) on film, and print in that format when printing. Has been done.

FIG. 12 is an external perspective view of a camera in which the field of view of the finder is also switched in accordance with the conventional screen switching. An LCD window 32 for displaying an LCD for displaying the number of frames to be photographed and the like is provided in a substantially central portion of the upper surface of the camera body 31.
A release button 33 is provided on the right side of the upper surface of the camera body 31, and the release button 33 and the LCD window 32 are also provided.
A panorama / normal (P / N) switch button 34 is provided between and. Furthermore, on the back side of the camera body 31,
A finder window 35 and a rear lid 36 are provided.

The P / N switch button 34 is provided on the camera body 34.
In some cases, it was arranged on the left and right positions of the finder window 35 instead of on the upper surface of FIG. 13 is a view showing another conventional example of a camera having a screen switching lever at the lower center of the rear surface of the camera.

In this camera, as shown in FIG. 13A, a release button 39 is provided on the upper surface of the camera body 38. A finder 40 is provided in the upper part and a P / N switching lever 41 and a panoramic display window 42 are provided in the lower part in the substantially central part of the rear surface of the camera. Reference numeral 43 is a cartridge confirmation window for confirming the film loaded in the camera.

In a camera having such a structure, as shown in FIG.
When the state shown in (a) is for normal size photography and the P / N switch lever 41 is switched for panoramic size photography, the panorama display window 42 is displayed as shown in FIG. 13 (b). The letter "P" is displayed.

The finder 40 is shown in FIG.
As shown in (c), the AF target mark 45 is displayed at the center of the AF target mark 45, the parallax correction mark 46 is displayed outside the AF target mark 45, and a panorama size instruction line is drawn in the horizontal direction.

[0008]

However, in the camera shown in FIG. 12 described above, when the photographer tries to operate the P / N switch button 34 while looking through the finder window 35, it can be operated with one hand. The arrangement of the switching button limits the operation to either the right hand or the left hand, which is inconvenient.

Further, in the camera having the configuration shown in FIG. 13, the P / N switching lever 41 can be operated by either the left or right hand, but since the finder field is not switched, the screen size can be checked while looking through the finder. It could not be done. In this case, the photographer must confirm the display of the panoramic display window 42 or the position of the P / N switching lever 41 in order to confirm the screen size, and must take his eyes off the viewfinder. It was inconvenient that it would not happen.

The present invention has been made in view of the above problems, and a camera capable of confirming the switching of the screen size without keeping an eye on the viewfinder and operating the switching of the screen size with either left or right hand is provided. The purpose is to provide.

[0011]

That is, according to the present invention, in a camera having a finder device capable of displaying that a field of view screen has been switched, the camera is provided at a substantially central portion on the rear side of the camera body, When the camera body is held by one hand, an operating member is provided which enables the switching operation of the visual field screen with only one of the held fingers of the one hand.

Further, according to the present invention, in a camera having a finder device capable of displaying that the visual field screen has been switched, the first visual field mask provided in the optical path of the finder optical system and the finder optical system. The first visual field masks are arranged outside the optical path so as to overlap each other along the optical axis direction, and are inserted into the optical path from a direction substantially perpendicular to the optical axis of the finder to cooperate with the first visual field mask. A plurality of mask means for developing a viewfinder field different from the one mask, and a substantially central portion on the rear surface side of the camera body, which is provided on the back side of the camera body when holding the camera body with both hands or one hand. An operating member that enables the switching operation of the visual field screen with only a finger, and a moving unit that selectively moves the plurality of mask units into the finder optical system in conjunction with the operating member. Characterized by comprising a.

The present invention provides a camera having a finder device capable of displaying that the visual field screen has been switched,
An operation member is provided at a substantially central portion on the rear side of the camera body. With this operating member, when the camera body is held by both hands or one hand, it is possible to perform the switching operation of the visual field screen only by the finger on the one hand side holding the camera body.

Further, according to the present invention, in a camera having a finder device capable of displaying that the field screen has been switched, a first field mask is provided in the optical path of the finder optical system. Further, a plurality of mask means arranged so as to overlap each other along the optical axis direction are provided outside the optical path of the finder optical system. The plurality of mask means,
By being inserted into the optical path from a direction substantially perpendicular to the finder optical axis, the finder visual field different from that of the first mask is developed in cooperation with the first field mask.
Further, an operation member is provided in the substantially central portion on the rear side of the camera body, and when the camera body is held by both hands or one hand, it is possible to switch the view screen with only one finger of the one hand holding the camera body. And Then, in conjunction with the operation member, the moving means selectively moves the plurality of mask means into the finder optical system.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a structure of a camera according to an embodiment of the present invention, and is a central sectional view parallel to an optical axis of the camera.

In FIG. 1, a finder 2 composed of a plurality of lenses 2a, 2b, 2c and the like is attached to the upper part of the exterior 1 of the camera. Then, a light ray 3 in a normal visual field passes through the finder 2.

The front side of the camera of the main body 5 in the exterior 1 (see FIG. 1).
On the left side), the taking lens 6 and the sector 7 of the shutter are provided. The light passing through the taking lens 6 forms an image on a film (not shown) in the film rail 5a portion formed on the main body 5. The film is urged by the pressure plate 9 from the rear (right side in the figure). The pressure plate 9 is attached to the main body 5 at a position separated from the exterior 1.
It has openings 9a and 9b. Further, the pressure plate 9 is formed with a projection 9c and a shaft 9d (see FIGS. 6 to 8) for engaging with an interlocking gear 18 and a thin plate 19 described later.

A finder mask is provided on the main body 5 which is located in front of and behind the axis 11 and the optical path which will be described in detail later, and which is inserted into and removed from the optical path of the finder 2 to obtain a finder field of the selected format. 12 and 13 are provided. The shaft 11 corresponds to the masks 12, 13
It has a partly tooth-missing gear 11a for moving the vertical direction.

Further, above the shaft 11, there are provided click pieces 14 and switch pieces 15 and 16 which engage with the click ridges 11e and 11f and which will be described in detail later. An interlocking gear portion 11g is formed on the pressure plate side of the shaft 11, and is configured to mesh with a gear portion 18a of the interlocking gear 18. The interlocking gear 18 is also engaged with the thin plate 19 and the dial 20.

The dial 20 is provided with an operation protrusion 20a for operating with a finger for changing the format, and is configured to be rotatable around a shaft portion 20b. The movement of the dial 20 causes the protrusion 20c formed on the dial 20 and the protrusion 1 formed on the interlocking gear 18 to move.
When 8b is engaged, it is transmitted to the shaft 11 via the interlocking gear 18.

Further, the movement of the interlocking gear 18 causes the thin plate 19 to move as described later. As a result, the light of the LED 21 arranged in the lower portion of the outer package 1 is allowed to be applied to the film through the openings 9a and 9b of the pressure plate 9.

Next, the movement of each part when the dial 20 is operated will be described with reference to FIGS. The dial 20 is exposed to the outside of the exterior 1 of the camera, and the operating protrusion 20a is operated by the operator's finger to rotate in a predetermined direction around the shaft portion 20b. By the convex portion 20c provided on the dial 20, the interlocking gear 18 rotates around the convex portion 9c of the pressure plate 9 via the convex portion 18b of the interlocking gear 18.

When the interlocking gear 18 rotates in a predetermined direction, the shaft 11 is rotated from the gear portion 18a formed on the interlocking gear 18 via the interlocking gear portion 11g of the shaft 11 having the toothless gear 11a. . With the rotation of the shaft 11, the partly tooth-missing gear 11a rotates in the direction of arrow A or B in the figure. still,
A gear portion 11c and a toothless portion 11d are formed on the mask side of the outer circumference 11b of the toothless gear 11a.

On the other hand, the masks 12 and 13 are formed with openings 12a and 13a having different shapes in order to limit the field of view in the substantially central portion thereof. A gear portion 12b and a pin 12c are provided below one side of the mask 12. Similarly, the gear portion 13 is provided below the mask 13.
b and pin 13c are provided. However, the gear portion 13b and the pin 13c are provided on the opposite side of the gear portion 12b and the pin 12c with the opening in between.

The gear portion 12b of the masks 12 and 13
And 13b, the pins 12c and 13c, and the toothless gear 11a.
By meshing with the gear portion 11c and the toothless portion 11d, the masks 12 and 13 move in the vertical direction of the camera,
It is inserted into and removed from the optical path of the finder 2.

That is, when the gear portion 12b of the mask 12 is meshed with the gear portion 11c of the shaft 11 and the shaft 11 is rotated in the direction of arrow A in the figure, the gear portion 12b of the mask 12 meshed with the gear portion 11c causes The mask 12 is moved up into the optical path of the finder 2 along the rail portion which is not covered. Similarly, when the shaft 11 is rotated in the direction of arrow B in the drawing, the gear portion 1
1c and the gear portion 13b mesh with each other, and the mask 13 is raised.

Here, when one mask is being moved in the vertical direction, the gear portion of the other mask faces the tooth-missing portion 11d of the tooth-missing gear 11a of the shaft 11, so that the shaft 1
I do not receive the power from 1. Further, when the mask is below the optical path of the finder 2, the pins 12c and 13c provided on the mask are at positions facing the outer circumference 11b of the shaft 11. For example, when holding the camera upside down,
When the masks 12 and 13 are raised and are about to be inserted into the optical path of the finder 2, the pins 12c and 13c come into contact with the outer circumference 11b of the shaft 11 to prevent the masks 12 and 13 from being raised. As a result, it is possible to move the other mask up and down with one mask lowered, or to bring both masks down.

Next, the operation of the shaft 11 and the masks 12 and 13 described above will be described in detail with reference to FIG. FIG.
In (a), 22 represents a normal visual field screen composed of the light rays 3 in FIG.

As described above, the opening 1 is formed in the mask 12.
2a, a gear portion 12b and a pin 12c are provided.
Similarly, in the mask 13, the opening 13a, the gear portion 13b,
A pin 13c is provided. Further, as described above, the shaft 11 also includes the tooth-missing gear 11a, the outer periphery 11b, and the tooth-missing portion 11
d is provided.

FIG. 3A shows a state in which a normal field of view screen (normal field of view) 22 in which both the masks 12 and 13 are lowered is seen in the viewfinder. At this time, even if the masks 12 and 13 are turned upside down in this state, the pins 12c and 13c come into contact with the outer circumference 11b of the shaft 11 to prevent them from entering the finder optical path.

When the shaft 11 is rotated clockwise, the gear portion 11c of the shaft 11 is replaced by the gear portion 12b of the mask 12.
By pushing, the mask 12 is pushed upward, that is, in the finder optical path. At this time, since the pin 12c faces the gear portion 11c of the shaft 11, the pin 12c is not blocked by the outer circumference 11b from being inserted into the finder optical path. FIG. 3 (b)
Indicates the state in which the mask 12 is thus inserted in the finder optical path.

The mask 12 is placed in the normal field of view 22 of the finder.
Is inserted, the vertical direction of the normal visual field 22 is restricted by the opening 12a of the mask 12, so that a horizontally long visual field can be seen from the viewfinder as shown in the drawing.

At this time, the gear portion 1 of the other mask 13
3b faces the toothless portion 11d of the shaft 11,
Does not receive power from. Further, the pin 13c is the outer circumference 1 of the shaft 11.
1b, the mask 13 is not inserted into the optical path of the finder even when the camera is turned upside down.

Next, when the shaft 11 is rotated counterclockwise, the state shown in FIG. That is, the gear portion 11c pushes the gear portion 13b of the mask 13 and the mask 13 is pushed up into the finder optical path. At this time, the pin 13c faces the gear portion 11c. Normal field of view 22
Since the mask 13 is inserted therein, the opening 13a restricts the lateral direction of the normal visual field 22 so that a vertically long visual field can be seen from the viewfinder as shown in the drawing.

At this time, the gear portion 1 of the other mask 12
2b faces the toothless portion 11d and receives no force from the shaft 11. Further, the pin 12c faces the outer circumference 11b, so that the mask 12 is not inserted into the optical path of the finder even when the vertical direction of the camera is reversed.

Next, with reference to FIGS. 4 and 5 (a) to 5 (c), the operation of the switch for indicating the click of the rotation of the shaft 11 and which of the masks 12 and 13 is raised will be described. The shaft 11 is formed with click ridges 11e and 11f for clicking which are activated when rotated, and convex portions 11 and 11i for moving the switch pieces 15 and 16 to turn the switches on and off. The click piece 14 has one end (not shown) fixed, and the other end whose movement is restricted upward.

Here, in order to change the field of view of the finder, for example, the axis 11 is moved in the direction of arrow C (see FIG. 5A).
When is rotated, the click crest 11e of the shaft 11 tries to push up the click piece 14. However, since both ends of the click piece 14 are restricted in movement as described above, the click piece 14 is distorted and a click force is applied to the shaft 11.

When the shaft 11 is rotated in the direction of arrow D in FIG. 5A, the click piece 14 is rotated in the opposite direction to the direction in which the shaft 11 is rotated in the direction of arrow C described above. Occurs between and the click crest 11f of the shaft 11.

Therefore, when the shaft 11 is rotated, the 3 shown in FIGS. 5 (a), 5 (b) and 5 (c) is clicked.
You will be able to click-stop in one position. Also,
As shown in FIGS. 4 and 5 (a), the switch pieces 15 and 16 come into contact with or separate from the click piece 14 so that which format is currently visible to the CPU (not shown) in the finder. The switch for indicating is configured.

In FIG. 5A, the switch pieces 15 and 16 are shown.
Touches the click piece 14. The finder in this state represents the normal field of view (see FIG. 3A) 22.

When the shaft 11 is rotated in the direction of arrow C in FIG. 5 (a) and the mask 12 is inserted into the finder optical path as shown in FIG. 3 (b), it is shown in FIG. 5 (b). Like That is, the switch piece 15 is pushed up by the convex portion 11h of the shaft 11 to separate the switch piece 15 from the click piece 14. As a result, a CPU (not shown)
It is transmitted that the mask 12 is inserted in the finder optical path.

On the other hand, if the shaft 11 is rotated in the direction of the arrow D in FIG. 5A, the switch 13 is also switched with the mask 13 inserted in the finder optical path as shown in FIG. 3C. The piece 16 is separated from the click piece 14.

In this way, the CPU (not shown)
It is possible to inform which mask is currently inserted in the finder optical path. Here, turning on and off of the LED 21 by a CPU (not shown) is controlled as follows.

The switch pieces 15 and 16 are both click pieces 1.
The LED 21 does not light when it is in contact with 4. Also,
When either or both of the switch pieces 15 and 16 are separated from the click piece 14, the LED 21 lights up.

Next, with reference to FIGS. 6 to 8, the operation of optically recording in which format the image was taken will be described. In the above format, it is possible to know which format the image was taken by selectively imprinting two dots by the LED 21 at a predetermined position outside the screen of the film. The dots of the LED 21 are formed by the light of the LED 21 being reflected on the film through the openings 9a and 9b formed in the pressure plate 9. The thin plate 19
This thin plate 1 is provided between the pressure plate 9 and the LED 21.
The operation of 9 selects whether or not the light is transmitted through the film through the openings 9a and 9b when the LED 21 is turned on.

When the dial 20 is rotated in the direction of arrow A or B in the figure, as described above, the interlocking gear 18 is protruded from the pressure plate 9 by the convex portion 20c formed on the dial 20 via the convex portion 18ba. It rotates in a predetermined direction around 9c.

At this time, the fitting portion 18c provided in the interlocking gear 18 and fitted into the opening 19a also rotates around the convex portion 9c. The opening 19a fitted to the fitting portion 18c causes the thin plate 19 to rotate about the shaft 9d of the pressure plate 9 in association with the rotation of the dial 20 in a predetermined direction.

Therefore, for example, in the state shown in FIG. 6, the thin plate 19 shields the opening 9a from light and exposes only the opening 9b. Therefore, if the LED is
When 21 is emitted, the light of the LED 21 is emitted only through the opening 9b, and only one dot is imaged on the film.

When the dial 20 is rotated in the direction of the arrow B in the drawing from the state shown in FIG. 6, the thin plate 19 rotates to expose the openings 9a and 9b of the pressure plate 9, as shown in FIG. Then, the light from the LED 21 is emitted from the openings 9a and 9b.
And two dots are imprinted on the film.

When the dial 20 is rotated in the direction of arrow A in the state shown in FIG. 6, the thin plate 19 is rotated to expose the opening 9a and shield the opening 9b from light, as shown in FIG. To be done. Therefore, the light of the LED 21 is emitted only through the opening 9b, and only one dot on the opposite side of FIG. 6 is imaged on the film.

The LED 21, the thin plate 19, the interlocking gear 18
Is attached to the pressure plate 19, and the dial 20 is attached to the exterior 1. Therefore, as for the force from the outside, only the force in the rotational direction is applied to the interlocking gear 18, and the components inside the exterior 1 described above are not destroyed by the force from the outside.

In the above description, it was described how each part operates by rotating the dial 20 and rotating the shaft 11. Here, it will be described below what kind of state each part becomes by rotating the dial 20.

I) When the dial 20 is in the position (neutral position) shown in FIG. 6, a) Neither the mask 12 nor the mask 13 is inserted into the finder 2, and the normal state shown in FIG. The field of view screen 22, b) The switch pieces 15 and 16 are both in contact with the click piece 14 (FIG. 5 (a)), so the LED 21 does not light up. C) The thin plate 19 is at the position shown in FIG. The field of view is normally field 22 and no dots are imprinted on the film to optically record the format.

Ii) When the dial 20 is rotated in the direction of arrow A in FIG. 6 to the state shown in FIG. 8, a) The mask 12 is inserted into the finder 2 (see FIG. 3).
(B)), a horizontally long visual field is obtained.

B) The switch piece 15 is separated from the click piece 14 (FIG. 5 (b)), and the LED 21 is turned on. C) The thin plate 19 is at the position shown in FIG.
The position where the light of the LED 21 is radiated to the film through a, the viewfinder field becomes horizontal as shown in FIG. 3 (b), and only one dot for optically recording the format is projected on the film through the opening 9a. Be done.

Iii) When the dial 20 is rotated in the direction of the arrow B in FIG. 6 to the state shown in FIG. 7, a) The mask 13 is inserted into the finder 2 (see FIG. 3).
(C)) The field of view of the short aspect ratio is obtained. B) The switch piece 16 is separated from the click piece 14 (FIG. 5 (c)) The LED 21 is turned on. C) The thin plate 19 is at the position shown in FIG. , Opening 9
The position where the light of the LED 21 is irradiated to the film through a and 9b becomes, and the viewfinder field has the short aspect ratio shown in FIG. 3C, and two dots for optically recording the format are imprinted on the film.

As shown in FIG. 9, the dial 20 described above is provided substantially below the finder located substantially in the center of the camera 24. The operation protrusion 25a of the dial 20 is formed in a normal position so as to face substantially downward. By providing the operation protrusion 25a at this position, the dial 20 can be easily operated by both hands holding the camera 24.

The operation protrusion 25a is not limited to the shape shown in FIG. For example, as shown in FIGS. 10A and 10B, the operation protrusion 26a may be formed on the lower portion of the dial 26 so as to project to the back surface of the camera 24.

Further, as shown in FIGS. 11A and 11B, an operation notch 27a may be formed below the dial 27 provided on the back surface of the camera 24, instead of the operation protrusion. .

Further, in the above-described embodiment, the mask can be inserted into and removed from the optical path of the finder, but the mask may be inserted into and removed from the photographing lens side by reversing the gear.

According to the above embodiment of the present invention, the following constitution can be obtained. (1) In a camera having a finder device capable of displaying that the visual field screen has been switched, a first visual field mask provided in the optical path of the finder optical system and the light outside the optical path of the finder optical system. The first masks are arranged so as to be overlapped with each other along the axial direction, and are inserted into the optical path from a direction substantially perpendicular to the finder optical axis to cooperate with the first field mask to form the first mask. Second and third masking means for raising different viewfinder fields, and a finger provided on one side of one of the held hands when the camera body is held by both hands or one hand, which is provided at a substantially central portion on the back side of the camera body. An operating member that enables the switching operation of the visual field screen only by itself, and the second or third operating member that interlocks with the operating member.
A moving means for selectively moving the mask means of 1. into the finder optical system.

(2) The second and third mask means have a gear portion, and the moving means does not mesh with the other of the second or third mask means when the complementary means of the second or third mask means is inserted into the optical path. The camera according to (1) above, which has a gear portion.

(3) Each of the second and third mask means has a protrusion that is prevented from moving into the optical path when it is not inserted into the optical path. A recess provided near the gear and allowing the movement of the protrusion when one of the second and third mask means is inserted into the optical path by the toothless gear and the second or third mask. The camera according to (2) above, further comprising: a blocking portion that blocks the movement of the protrusion when the other of the mask means is not inserted into the optical path. (4) The camera according to (1), wherein the operation member is a rotary knob for selecting a viewfinder field.

[0064]

As described above, according to the present invention, the viewfinder field is changed to the one adapted to the selected screen size, and the operation member for switching the screen size is located at the substantially central portion on the rear side of the camera. While the photographer can check the screen size without taking his eyes off the viewfinder,
The screen size can be switched with either the left or right hand holding the camera.

Further, since the operation member is of a dial type and the portion operated by a finger is formed far from the finder of the dial, it can be easily operated while looking through the finder.

[Brief description of drawings]

FIG. 1 is a central sectional view parallel to an optical axis of a camera, showing a configuration of a camera according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating movements of a shaft 11 and masks 12 and 13 when a dial 20 of FIG. 1 is operated.

3A and 3B are diagrams for explaining the operation of an axis 11 and masks 12 and 13, where (a) shows a normal view screen state, (b) shows a horizontally long screen state, and (c) shows a vertically long screen state. It is the figure shown.

FIG. 4 is a diagram illustrating an operation of a switch indicating a relationship between a click of rotation of a shaft 11 and masks 12 and 13.

FIG. 5 is a view for explaining the operation of a switch showing the relationship between the click of rotation of the shaft 11 and the masks 12 and 13,
FIG. 7A is a diagram showing a normal view screen 22 state, FIG. 8B is a horizontally long screen state, and FIG. 8C is a vertically long screen state.

FIG. 6 is a diagram for explaining the operation of optically recording on the film which format was taken, in which the finder field of view is the normal field of view, and the film does not include the dots for optically recording the format. It is the figure which showed the state.

FIG. 7 is a diagram for explaining an operation of optically recording on the film which format was taken, in which the viewfinder field is horizontally long and two dots for optically recording the format are imprinted on the film. It is the figure which showed the state where it was enclosed.

FIG. 8 is a diagram for explaining the operation of optically recording on the film which format was taken, in which the viewfinder field is vertically long and only one dot for optically recording the format is imprinted on the film. It is the figure which showed the state where it was enclosed.

FIG. 9 is an external perspective view of a camera according to an embodiment of the present invention.

FIG. 10 shows another embodiment of the present invention and is a diagram showing the shapes of the dial and the operation protrusion.

FIG. 11 shows still another embodiment of the present invention and is a view showing shapes of a dial and an operation notch.

FIG. 12 is an external perspective view of a camera in which the field of view of the finder is also switched in accordance with the conventional screen switching.

13A and 13B show another conventional example, in which FIG. 13A is an external view of a camera having a screen switching lever in the lower center of the rear of the camera, and FIG. 13B is a P / N diagram of FIG. 13A. The figure which showed the switch lever and the panoramic display window, (c) is the figure which showed the display example of the finder of the figure (a).

[Explanation of symbols]

 1 exterior, 2 viewfinder, 3 light rays, 5 main body, 6 photographing lens, 9 pressure plate, 9a, 9b opening, 9c, 11h, 11i, 18b, 20c convex portion, 9d, 11 axis, 11a toothless gear, 11b outer circumference, 11c, 12b, 13b gear part, 11d toothless part, 11e, 11f click crest, 11g interlocking gear part, 12, 13 finder mask (mask), 12a, 13a, 19a opening, 12c, 13c pin, 14 click piece, 15 , 16 switch pieces, 18 interlocking gear, 18a gear part, 18c fitting part, 19 thin plate, 20 dial, 20a operation protrusion, 20b shaft part, 21 LED.

Claims (3)

[Claims] 1. In a camera having a finder device capable of displaying that the field of view screen has been switched, the camera is provided at a substantially central portion on the rear side of the camera body, and when the camera body is held by both hands or one hand. A camera provided with an operating member that enables the switching operation of the visual field screen with only one of the held fingers on one hand. 2. The operating member is a rotating member provided in a lower portion of the finder device, and the rotating member has a protrusion extending toward a lower portion of the camera body. The camera according to claim 1. 3. A camera having a finder device capable of displaying that a field of view screen has been switched, wherein a first field mask provided in an optical path of a finder optical system and an optical path outside the optical path of the finder optical system. The first masks are arranged so as to overlap each other along the optical axis direction and are inserted into the optical path from a direction substantially perpendicular to the finder optical axis to cooperate with the first field mask. And a plurality of mask means for developing a different viewfinder field, and the camera body is provided on the rear side of the camera body substantially at the center, and when the camera body is held by both hands or one hand, only one finger on the one hand side holds the camera body. And an operating member that enables the switching operation of the visual field screen, and a moving unit that selectively moves the plurality of mask units into the finder optical system in conjunction with the operating member. Camera that characterized the door.