Abstract: A camera having means for pre-winding unexposed film, in non-darkroom conditions from a film cartridge to a take up spool and limiting removal and replacement of the film cartridge to those designated to do. A latching member includes a pair of slots structured to slidingly engage a pair of guide pins disposed on the main body side wall and a pair of hooks structured to matingly engage a pair of hooks extending out from the rear door to prevent the camera door from being opened. A pair of outwardly biased locking pins, extending out from the main body side wall, are structured for movement from a first extended position, wherein the pins extend through a pair of corresponding holes in the latching member, thereby retaining the latching member in a first upper, locking position, to a second depressed position, wherein the latching member may be slid downward to a second lower, unlocking position, thereby permitting the rear door to be opened.