the rear cover for a film camera pivotably connected at one end to the camera housing and connectable at its other end to the housing is provided with a lock for releasably connecting the connectable end of the rear cover to the camera housing . the lock comprises a bias integrally connected to the film viewing window secured in the rear cover of the camera and a latch cooperating with the bias for releasably connecting the connectable end of the rear cover to the camera housing . in a second aspect of the invention , a second bias is provided which is integrally connected to the film viewing window and releasably secures a battery cell to the rear cover of the camera . in a third aspect of the invention , a structure for securing a battery cell to the rear cover of the camera is provided which is integrally connected to the film viewing window located therein .