Abstract: An optical apparatus comprises an association device which operates a viewfinder in association with a movement of an image forming optical system. After the movement of the image forming optical system, the association device severs the association of the viewfinder with respect to a movement of the image forming optical system in a direction different from that of the first-mentioned movement.

Abstract: In a data imprinting device of a camera arranged to effect shooting either in a first shooting format in which a scene is recorded on a substantially entire area of a photosensitive zone of a film frame or in a second shooting format in which a part of the photosensitive zone of the film frame is shielded from light to form a light-shielded area thereof and a scene is recorded on a light-unshielded area of the photosensitive zone other than the light-shielded area, there are provided a data imprinting part for imprinting data on a film surface, and a data-imprinting control part arranged to vary a position where the data is to be imprinted by the data imprinting part according whether the shooting is effected in the first shooting format or the second shooting format, so that data imprinted in different shooting formats can be located always in adequate positions within printed pictures irrespectively of the difference in shooting format.

Abstract: A camera using a variable magnification photographic optical unit, or an apparatus for such a camera, includes a follower portion for following a magnification varying operation of the variable magnification photographic optical unit, a driving portion for driving a flash unit or a finder in accordance with the magnification varying operation of the variable magnification photographic optical unit, and an interlocking portion, rotatably supported around a supporting portion, for joining the follower portion and the driving portion and for arranging the supporting portion, the follower portion, and the driving portion in such a manner so as to be substantially in a straight line.

Abstract: A red-eye phenomenon preventing device includes a light emitting part for flash photography, a light emitting part for preventing the red-eye phenomenon, a reflection shade arranged to surround the light emitting part for flash photography and the light emitting part for preventing the red-eye phenomenon, and a protector disposed in front of the light emitting part for flash photography and the light emitting part for preventing the red-eye phenomenon.

Abstract: In a drop-in loading type camera, in which a film is loaded by dropping a film cartridge in a cartridge chamber from the axial direction of the cartridge, it has holding means which obliquely holds the film cartridge until the film leader is dropped in at a position beyond the aperture so that the film leader is dropped in later than the cartridge proper when dropping the film cartridge into the cartridge chamber.

Abstract: A camera of the kind arranged to wind a film onto a spool in the reverse winding direction comprises a spool for taking up the film in the reverse winding direction, a guide roller, and a position changing member for changing a position of the spool to cause the film to be inserted and pinched between the spool and the guide roller so that the film is advanced by a driving force of the spool.

Abstract: The disclosed camera changes between two focal lengths by bringing or taking a built-in attachment lens into and out of axial alignment with a master lens. A single electric motor serves as the drive source both for changing the focal length and effecting automatic focusing. The attachment lens is brought into axial alignment with the master lens for telephoto operation and taken out of axial alignment with the master lens for standard operation.

Abstract: The present patent application discloses a flash device for camera, or a camera, including a light emitter for flash photography mounted about a pivot shaft on the camera body and a light condenser mounted about a pivot shaft on the photographic lens barrel which moves to vary the light distribution characteristics of the light emitter as the focal length of the photographic optical system varies, wherein when the flash device is in use, the light condenser moves as the focal length of the photographic optical system varies, thus making it possible to obtain the light distribution characteristic which is suited to the focal length of the photographic optical system, while when not in use, the light emitter and the light condenser are turned to be integrally housed in an appropriate plate of either the lens barrel or the camera body.

Abstract: An optical system shifting device for a camera in which an optical system is shifted in the direction of the optical axis by the driving force of a motor, wherein a first positioning member effects the positioning of the optical system in the direction of the optical axis independently of the driving force of the motor, a second positioning member effects the positioning of the optical system in a direction perpendicular to the optical axis of the optical system, and a switching member actuates the motor by giving an external force to the optical system, whereby the functional features as well as maneuverability of the optical system shifting device are improved.

Abstract: In a vari-focal camera which has a photo-taking optical system including a main lens system and an auxiliary lens system and is arranged to be shiftable between at least two different focal lengths by moving the photo-taking optical system back and forth on a photo-taking optical axis in such a way as to cause the auxiliary lens system to move onto and out of the optical axis, a guide bar is arranged to allow a lens barrel unit which includes the photo-taking optical system, a shutter and a photo-taking lens focusing device to straightly move. The guide bar is fittingly engaged with a member secured to a camera body. The camera is further provided with an adjusting member for focusing the photo-taking optical system in each of preset positions in which the photo-taking lens has the different focal lengths.

Abstract: A motorized camera having a gear train between an electric reversible motor and a film rewind fork with a mechanism for transferring the driving torque from an intermediate gear of the train to move a member having function other than film transportation as the gear is out of mesh with the next one, wherein a mechanism is provided between the last gear of the train and the rewind fork so that only when the last gear has rotated by a prescribed angular distance, the fork starts to engage the supply spool of the film cartridge to rewind the film.

Abstract: In the automatic film transportation type camera using an electric motor in which upon a forward rotation thereof the film is wound and upon a reversed rotation thereof the film is rewound, a mechanism for moving a photographic lens barrel between a standard or wide angle setting and a telephoto setting is provided with a clutch capable of transferring the motion of the motor from a rewind fork to the moving mechanism, and a switch arranged to be closed when the clutch is cut off, thereby the motor is energized to rotate in the reverse direction, driving the barrel to move axially from one of the settings to the other, while leaving the rewind fork stationary.

Abstract: The disclosed camera has shutter blades which also serve as diaphragm blades and an auxiliary light-metering aperture arranged, upon operation of the shutter blades, to be opened and closed depending upon opening and closing of a main aperture which lies in the path of light from an object to be photographed to a film. A photo-interpreter composed of a light projection element and a photosensitive element optico-electrically detects the size of the opening of the main aperture of the shutter blades. Once the auxiliary aperture has assumed a totally light blocking state from a pre-opened state, the photo-interpreter produces an output signal that initiates counting of light metering data. During flash photography, a flash device is triggered with a timing to make a proper exposure with a signal representing the required aperture value as detected by the photo-interpreter.

Abstract: Pulses through a coil in a magnetic field move the coil back and forth and cause an engagement arrangement to execute successive roundtrip movements that advance a focus control along one step for each pulse. According to an embodiment of the invention, the inertia of an exposure control is too great to follow the back and forth motion of the coil in response to these focusing pulses. However, longer exposure control pulses allow the exposure control to follow the coil motion.

Abstract: In the disclosed electromagnetically driven shutter a shutter release produces a first flow of current that electromagnetically moves a rotor coil arranged in a magnetic field to a position where it unlatches an automatic focusing operation and where it is locked to prevent backward motion. Termination of the focusing condition starts an exposure control arrangement and initiates a second current flow that moves the rotor coil further to control opening and closing of the shutter blades. Thus, two successive current flows coordinate the focus operation and the exposure.

Abstract: In the camera disclosed, a control circuit responds to a focus detecting circuit to energize first display portions to produce a first mark representing the detected distance, and responds to a setting arrangement to energize other display portions to produce a second different mark representing a set distance. According to an embodiment, the control circuit displays a third mark when the first and second marks coincide.