Abstract: An apparatus and method for installing film into a detachable film cassette assembly including a film clip adapted to receive a film cartridge, a winding housing attached to the film clip, and first and second film covers. The method includes coupling the film cartridge to the film clip, inserting the film clip into the first film cover, inserting the second film cover over the film clip, and engaging the first and second film covers to at least partially enclose the film clip between the winding housing and the film cartridge.

Abstract: A lens-fitted photographic film package with dual lens includes a film-free self-activating shutter mechanism and a detachable cartridge for removing and installing film. A 35-mm film cartridge is attached to a cartridge adapter, and a filmstrip end is inserted and pre-wound into a winding housing including a winding spool therein. As photographs are taken, film is advanced frame-by-frame into the film cartridge, where it may be easily removed from the adapter without rewinding of the film, and replaced by a fresh film cartridge. Thus, the adapter transforms the lens-fitted photographic film package into a reusable package.