Abstract: At least one exemplary embodiment is directed to an image pickup apparatus which includes an image pickup unit, a first optical member, a film, a second optical member, and a luminosity correcting filter. The image pickup unit includes an image sensor. The first optical member is operatively attached to the image pickup unit and formed of a birefringent crystal material. The film is disposed between the first optical member and an image pickup optical system and formed of an organic material. The second optical member is operatively attached to a first side of the film. The luminosity correcting filter is operatively attached to a second side of the film.

Abstract: At least one exemplary embodiment is directed to an image pickup apparatus which includes an image pickup unit, a first optical member, a film, a second optical member, and a luminosity correcting filter. The image pickup unit includes an image sensor. The first optical member is operatively attached to the image pickup unit and formed of a birefringent crystal material. The film is disposed between the first optical member and an image pickup optical system and formed of an organic material. The second optical member is operatively attached to a first side of the film. The luminosity correcting filter is operatively attached to a second side of the film.

Abstract: The invention provides an electronic camera which is excellent in portability and capable of sensing an image in portrait angle by holding a lower portion of the camera as well as of providing users with a drivability and an operational feeling equivalent to those of a silver halide film camera. The electronic camera comprises: image sensing means for photo-electrically transforming a subject image which is sensed through an optical system; a memory cartridge 4 for recording image data which is produced from the image sensing means as an image picture; and a battery 3 for supplying electric powers to built-in electronic components and various circuits, wherein: the battery 3 and the memory cartridge 4 are disposed, respective width directions being aligned in a depth direction of a main body 1 of the camera while respective thickness directions being aligned in a height direction of the main body of the camera.

Abstract: In an optical apparatus having a mount adapted to be rotated to be attached to and detached from a mount of another apparatus, the mount of the optical apparatus is molded by plastic material, and concave and convex portions are provided on an abutment surface of the mount of the optical apparatus to reduce the sliding area, thereby making the scratches caused by the sliding inconspicuous.

Abstract: A lens barrel which is detachably mountable on a camera body comprises a lens system and a low-pass filter, wherein the low-pass filter is detachably mountable with respect to an optical path of the lens system. An accessory which is provided between a camera body and a lens barrel and which is detachably mountable on the camera body and the lens barrel, comprises a lens and a low-pass filter. A camera system comprises a camera body and a lens barrel which is detachably mountable on the camera body, wherein the lens barrel has a low-pass filter which is detachably mountable with respect to an optical path of a lens system.

Abstract: A camera includes a signal input circuit mounted in a back cover, a processing circuit receptive of signals from the signal input circuit for processing camera information, a control circuit operating with selection of exposure modes, and a circuit for changing over kinds of camera information to be input by the signal input circuit in accordance with the selected one of the modes.

Abstract: An information input device for a camera includes an information member having first camera information displayed on one face thereof and second camera information displayed on a second face thereof, a holding member capable of holding the information member with either of its faces in viewable disposition and a detector for detecting which of the faces is in the viewable disposition when the information member is held by the holding member.

Abstract: A camera having a back cover capable of electrically communicating with the camera body. The camera body and the back cover each have a plurality of contact elements. When the back cover is closed on the camera body, their contact elements in each pair come in contact with each other so that electrical communication is established therebetween. The plurality of pairs of the contact elements are arranged in almost parallel row-like relation to an axis about which the back cover is pivotal, constituting the contact device of the invention.

Abstract: A mechanism for eliminating static electricity for a camera in which the static electricity charge on a photographic film or a magnetic tape is led to a grounding part formed on a camera body through a guide roller means made of electrically conductive material which is constantly pressed, while rotating, into contact with the photographic film or the magnetic tape which is wound up onto a winding spool.

Abstract: A structural arrangement for members to be operated for control over varied functions of a camera, such as operation buttons, terminals for connection with accessories, etc. A grip part is openably carried by one side of a camera body. A camera function control arrangement is disposed within the grip.

Abstract: A camera having a first driving torque transmission for winding a film strip and a second driving torque transmission for rewinding the film strip with changeover means for selectively connecting the output of an electric motor to the first and second transmissions to effect automatic winding and rewinding. The motor in operative connection with the second transmission after being switched from an initial position where it is connected to the first transmission is automatically returned to the initial position when the film rewinding is completed.

Abstract: A clutch mechanism for a camera having a winding and rewinding mechanism is arranged to be connected by a film winding operation and to disconnect a film take-up spool from a transmission system in the event of a film rewinding operation. The clutch mechanism is of a face type clutch arrangement having a different number of driving teeth from that of teeth to be driven.

Abstract: A camera having a first driving torque transmission for film winding and a second driving torque transmission for film rewinding upon selective connection of the output shaft of an electric motor to automatically perform winding and rewinding. A display representing whether or not the transportation of the film by the motor is in progress is presented in either of the winding and rewinding modes, wherein use is made of two different film transportation detecting mechanisms for the winding and rewinding modes respectively.

Abstract: A mechanically controlled shutter with a latch for holding the closing curtain in a charged position arranged upon running off of the opening curtain to start operation which then terminates at running off of the closing curtain to control the shutter time, wherein there is provided a keeper for holding the closing curtain latch in the charged position independently of the closing curtain latch, whereby after actuation of a camera release operation and before the opening curtain runs off, the keeper is actuated to release out of holding connection with the closing curtain.

Abstract: A light shading device for a camera in which a soft and elastic light shading curtain has a base part which is fixed on a flat support surface, in the region of the shutter running path. The free end of the shading curtain is brought into elastic contact with the shutter curtain by way of a step provided on the support, the step serving to incline the free end of the light shading curtain with respect to the support surface.

Abstract: The disclosed camera includes a viewfinder which displays a display member representing a preset aperture value in its view field, and is capable of operating in open aperture and stopped down aperture manual exposure modes as well as a shutter priority automatic exposure control mode. A retracting arrangement retracts the display member from the view field in response to a shift either to the stopped down or the shutter priority automatic exposure control mode.

Abstract: The disclosed camera ordinarily uses an electromagnetic release device. A supplemental mechanical release device is enabled only when the electromagnetic release device's battery is absent from the battery case. The release operation is then carried out by the mechanical release device.

Abstract: A device for releasing shutter hold particularly for a single lens reflex camera including a shutter hold release device having a release mechanism for releasing the shutter hold wherein the driving power for the release mechanism is charged into the release mechanism in operative engagement of the charge of mirror driving power in a mirror driving mechanism of the device.