Abstract: A film cassette supporting spring for permitting the insertion of a film cassette having a first configuration into a film chamber where the spring supports the film cassette in position for the exposure of a film unit contained therein, and for preventing a film cassette of a second configuration from being so positioned. The supporting spring includes a film cassette engaging section located in the path of travel of a film cassette as it is being loaded into the film chamber. A resilient arm is coupled to the engaging section and is adapted to be engaged and deflected by a film cassette, having the first configuration, through a distance sufficient to move the engaging section out of the path of the incoming film cassette.

Abstract: An adapter for connecting a camera not provided with a tripod socket to a tripod. The adapter comprises a housing, a threaded insert for receiving a tripod screw in the housing, and a dovetail shoe adapted to fit a cooperating dovetail slot in the camera bottom. The dovetail shoe is formed with an opening in which there is a brake assembly movable by a manually operable lever between locked and unlocked positions.

Abstract: A quick release adapter for connecting a cable release or self-timer to a camera and applying a shutter operating force to the shutter button of the camera. The force transmitting mechanism includes an overtravel spring to minimize malfunctions that might occur because of differences in tolerances between cameras, adapters and accessories. The adapter comprises a housing embracing the lensboard of the camera and being detachably connectable to the camera by means of a cam operated latch.

Abstract: A system for mounting accessories, e.g., filters, supplementary lenses, lens shades, etc., on a compact camera housing including a flash unit receiving socket. The system includes an accessory holder that is adapted to be connected to the camera flash socket to hold it on the housing. The holder includes a flash socket that is operatively connected to the camera socket when the holder is coupled thereto. Also special accessory mounts are provided for attaching accessories to the holder.

Abstract: An accessory mount for use in a system for mounting accessories, e.g., filters, supplementary lenses, lens shades, etc., on a compact camera housing including a flash unit receiving socket. The system includes an accessory holder that is adapted to be connected to the camera flash socket to hold it on the housing. The holder includes a flash socket that is operatively connected to the camera socket when the holder is coupled thereto. The invention relates to special accessory mounts which are provided for attaching accessories to the holder.

Abstract: A carrying strap attachment for a camera including couplers pivotally attached thereto to provide movement between a first operative position, in which the couplers engage opposite sides of a first movable section, and a second inoperative position in which the couplers are out of securing relation with the first movable section. The strap attachment may be detached from the camera by manually moving the couplers from the first to the second position or automatically detached by a cam action provided by engagement of the couplers with a second section of the camera when the camera is moved from an extended to a folded position. The couplers are pivotally connected to a support and a resilient member operated to resiliently bias the couplers into the first position wherein the camera is securely transported in an extended operative position instantly available for use.