SMPTE 199 – Motion-Picture Film (8-mm Type S) – 50-Ft Model 1 Sound Camera Cartridge – Pressure Pad Flatness and Camera Aperture Profile
This standard specifies the dimensions and characteristics necessary for the appropriate flatness of the cartridge pressure pads as well as the required clearances for the film in the aperture area in 8-mm type S 50 ft model I sound motion-picture film camera cartridges.
