SMPTE 166-2004

Motion-Picture Film (8-mm Type S) ¿ Exposure Control and Stock Identification ¿ Sound and Silent Camera Cartridge Notches This standard specifies the dimensions and location of 8-mm type S sound and silent motion-picture film camera cartridge notches intended to preset exposure devices automatically with respect to the film speed and color-balancing filter.This standard also specifies the dimensions and location of cartridge notches intended for identification of the motion-picture film inside the cartridge.