DEVICE FOR PREVENTING FILM MOVEMENT IN CAMERAS

摘要

A camera for roll film perforated at predetermined metering intervals includes a transport mechanism for advancing the film along an exposure plane and a metering mechanism having an inactive condition and an active condition for stopping film transport when the film is correctly positioned for exposure. A film sensing pawl is mounted for movement between a retracted position resting on the film surface, an extended position transversing the film while in a film perforation and a metering position spaced from the extended position in the direction of film advancement. A resilient force is selectively applied to the sensing member in a direction urging the sensing member from its metering position toward its extended position. The force on the sensing member is relieved at least during operation of the camera's exposure mechanism so that the force is not transmitted by the sensing member to the filmstrip.