A camera comprises a film cartridge chamber for accommodating a film cartridge containing a film. The film cartridge has a first rotational shaft. An operating member is mounted for rotation in first and second opposite directions by manual operation for winding and rewinding the film, respectively. A second rotational shaft is provided for connection to the operating member during rotation of the operating member in the first direction. A wheel train transmits rotational movement of the operating member to the first rotational shaft to wind and rewind the film. A first clutch mechanism disconnects transmission of rotational movement by the wheel train when a tensional state of the film is generated. A second clutch mechanism connects the operating member to the second rotational shaft for integral rotation therewith during rotation of the operating member in the first direction, and makes the second rotational shaft freely rotatable with respect to the wheel train during rotation of the operating member in the second direction.