JPS62246019A - Camera system - Google Patents

Abstract

PURPOSE:To expand photographic embodiment greatly by substituting a camera body with an adapter unit and obtaining a photography system other than a basic system. CONSTITUTION:A mount part for a film magazine 25 is formed on the back surface side of the frame member 37 of an adapter 30 as well as on the back of the camera body 1. Therefore, an extension base 7 is mounted on guide tubes 32 and 32 and a lens unit 15 is mounted in front of a lens board 12; and then both ends of a bellows 3 are engaged with the rear surface of the lens board 12 and the front surface of the frame member 37. Further, the film magazine 25 is loaded on the back of the frame member 37 to constitute a camera system different from basic system constitution. Thus, the adapter 30 is utilized to take a picture on a film surface tilted and swung through the tilting and swinging operation of the frame member 37 while the extension base 7 and lens unit 15 are diverted as they are, thereby expanding the photographic embodiment greatly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a camera system that allows various photographing modes to be selected.

[Conventional technology]

Large format cameras that use 120 type Brownie film and the like are not only used by amateurs, but are also often used for commercial purposes, such as in commercial photography. In order to be able to handle commercial photography, it is not enough to have interchangeable lenses, strobe devices, motor drive devices, etc. that are provided with popular cameras. It is required to be able to change the imaging mode.

In consideration of such circumstances, a camera is known in which a camera body and a photographic lens unit are connected via a bellows, so that the photographic lens can be tilted in all directions. In addition, by making the film magazine removable from the camera body and by preparing dedicated film magazines for different sizes, it is possible to change the film size or select the type of photosensitive material used. Some have been.

[Problem that the invention seeks to solve]

By the way, in the conventional large format cameras mentioned above, it is assumed that the film magazine is attached to the camera body in a fixed state. It is impossible to take pictures with the tilt of the darkest lens and the tilt of the film surface as well. Therefore, until now, special cameras have been used to take such photographs, but the cameras used for this type of purpose are quite large, lack portability, and require great mobility. It is not practical if

The present invention has been made in view of the background of the prior art, and is a systemized camera that satisfies the needs of amateur users, mobility, and ease of operation. It is an object of the present invention to provide a camera system that can be recombined to suit different shooting modes.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention constitutes an adapter for the darkest position in Photo 1 from a base part on which a guide tube is protruded, and a frame part attached to the base part so as to be able to tilt freely. are doing. A support unit to which a photographic lens is mounted is held in the guide tube so as to be movable forward and backward in the optical axis direction of the photographic lens, and the support unit and the front surface of the frame are optically connected by a bellows.

By placing a film holder t-18 on the front of the frame and tilting the frame, it is possible to take pictures even when the film surface is tilted.

An embodiment of the present invention will be described below with reference to the drawings.

〔Example〕

In FIG. 3 showing the basic system of a camera to which the present invention is applied, an opening 2 is formed in the front surface of a camera body 1. As shown in FIG. A bellows 3 is attached to the front of the camera body 1. When attaching the bellows 3, the corner 4 and the hook fitting 5 are used. A feeding base 7 is attached to a pair of guide tubes 6.6 protruding from the bottom of the camera body 1. This feeding base 7 has a knob 8
By the rotation of , it can be moved forward and backward via a well-known rough coupinion mechanism.

A standard 10 that is rotatable about a shaft 9 is provided on the feeding base 7, and a lens board 12 is attached to the standard 10 so as to be rotatable about a shaft 11. On the lens board 12,
The lens unit 15 is firmly attached to the front lever 14 and the rear lock hole 15a, but the standard 1o
Alternatively, by rotating the lens board 12 around the respective axes 9 and 11, the lens unit 15 can be tilted and tilted in the swing direction and the tilt direction.

A photographing lens 16 is fixed to the lens unit 15, and a so-called electric shutter that controls exposure electrically is built into the lens unit 15. When the lens unit 15 is mounted on the lens board 12, the contact pin provided on the back surface of the lens unit 15 is connected to the contact point 18 exposed on the front surface of the lens board 12. Said contact 1
8 is a connector 19. Signal code 20. Further, since it is connected to the camera body 1 via the connector 21, the shutter device can be driven by a signal from the camera body 1 side.

The front side of the bellows 3 is connected to the back surface of the lens board 12 via an engaging portion configured similarly to the camera body 1. Thereby, the light beam from the photographing lens 16 is directed to the opening 22 of the lens board 12. Bellows 3. Since it passes through the opening 2 of the camera body 1 and reaches the reflex mirror 23, the focus plate 24
It can be observed through the finder.

A film magazine 25 is attached to the back of the camera body 1. By mounting the film magazine 25, the contacts 26 are connected to a contact bin provided exposed on the back of the camera body 1. Therefore, the film winding mechanism built into the film magazine 25 can be operated by a command from the camera body 1 side. In addition, the code 27 in the figure is
A front plate used as a stopper to prevent the feeding base 7 from being removed is shown.

The camera system that is used in combination as described above is suitable for amateur use or for photographing modes that require mobility, but cannot cope with photographing that requires tilting and tilting operations even on the film surface. When performing such photography, an adapter 30 shown in FIG. 1 is used.

This adapter 30 includes a base 33 to which a pair of guide tubes 32 and 32 configured in exactly the same manner as the guide tube 6.
A frame 35 that is rotatable around 4 and a frame 3
5 and a frame member 37 that is coupled via a shaft 36 and is rotatable around the shaft 36. An opening 38 is formed in the front surface of the frame member 37, and the bellows 3
A corner 39 and a hook fitting 40 are provided for mounting. Since the structure and arrangement of the corner 39 and the hook fitting 40 are common to all the corners 4 and the hook fitting 51 provided on the camera body 1, the bellows 3 can be attached as is.

On the back side of the frame member 37, like the back side of the camera body 1, a mounting portion for the film magazine 25 is formed. Therefore, as shown in FIG. 2, after attaching the feeding base 7 to the guide tube 32, 32 and attaching the lens unit 15 to the front surface of the lens board 12,
Connect both ends of the bellows 3 to the back of the lens board 12,
By attaching the film magazine 25 to the front side of the frame member 3.7 and attaching the film magazine 25 to the back side of the frame member 37, the third
A camera system is configured that is different from the basic system configuration shown in the figure.

When assembling this camera system, a controller 4 for controlling the operation of the shank is attached to the base 33 of the adapter 30.
2 is attached. Since this controller 42 also has a built-in power supply, the signal code 4 of the controller 42
3 to the feed-out base 7 via the connector 44, the electric shutter built in the lens unit 15 can be operated by operating the release button 45 provided on the controller 42, and the adapter 30 and film An electric signal can be supplied to the film magazine 25 through the contacts 26 of the magazine 25 to operate the built-in film winding mechanism.

As described above, by using the adapter 30, it becomes possible to take photographs with tilting on the film surface by tilting the frame member 37 while using the feeding base 7 and lens unit 15 as they are, which greatly improves the shooting mode. □
It will be possible to expand. Note that if the photographic lens mounted on the lens board 12 has a mechanical shutter charge mechanism and a release lever, photographing will be performed without using the controller 42. Furthermore, if a focusing glass and a film holder for a view camera can be attached to the front surface of the frame member 37, the above system can be used as a view camera as is.

〔Effect of the invention〕

As described above, according to the camera system of the present invention, the lens support unit, bellows, film magazine, etc. that are used when configuring the basic camera system can be used as they are, while being able to cope with conventional cameras. It is now possible to take pictures in a manner that was not possible before, which is very effective in greatly expanding the number of photographic manners.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the appearance of an adapter used in the present invention. FIG. 2 is a schematic plan view showing an example of how the adapter shown in FIG. 1 is used. FIG. 3 is an exploded perspective view showing the basic system of a camera to which the present invention is applied. 1... Camera body 3... Bellows 6... Guide tube 7... Feeding base 12... Lens board 15... Lens unit 25...
・Film magazine 30・・Adapter 32・・Guide tube 35・
-Frame 37...Frame member 42...Controller.

Claims (1)

[Claims] (1) A photographic lens with a built-in electric shutter, a mount part for attaching this photographic lens, a support unit that supports this mount part in a tilt-and-swing manner, and a support unit that can freely move forward and backward in the direction of the optical axis. A camera main body section that includes a guide tube to be held and a shutter control section that controls the operation of the electric shutter, and that can be freely observed through a finder through a built-in finder mirror and focusing plate, a back surface of the support unit, and a front surface of the camera main body. A camera system in which the basic system is composed of a bellows that optically connects the support unit in a light-tight manner and a film holder that stores a film and is attached to the back of the camera body, wherein the support unit is movable back and forth in the optical axis direction. a base portion provided with a guide tube for holding; a frame portion attached to the base portion so as to be tiltable; and a frame portion having a mounting portion for the bellows on its front surface and a mounting portion for the film holder on its back surface; A camera system characterized in that the camera body is replaced with an adapter unit including a shutter control unit for controlling the operation of the electric shutter, so that a photographing system other than the basic system can be used.