SMPTE 157 – Motion-Picture Film (8-mm Type S) – Camera Aperture Image and Usage (R2004)
This standard specifies the dimensions of the camera aperture image and its relative position to the reference edge and the perforations of 8-mm type S motion-picture film, as specified in ANSI/SMPTE 149.This standard also specifies the position of the emulsion and the frame rate for 8-mm type S motion-picture film.
