To provide a film unit provided with a lens capable of performing shutter charge similar to that of a full size film unit provided with the lens by the specified rotation of a charge cam in the case of taking up film by an amount equivalent to a half size.

This film unit provided with the lens to which an unexposed 135 film is previously loaded in a roll state, and the film exposed by each photographing is taken up inside a cartridge is provided with a shutter charge member rapidly operated from a charge condition by the pressing force of a pressing member so as to operate a sector 31, and a charge cam 14 provided with (n) sets of cams operating the shutter charge member in the charge condition, and rotating 1/n by taking up the film by one frame.