SMPTE 151-2004

This standard specifies the cutting and perforating dimensions for 16-mm motion- picture film with 8-mm type S perforations in positions 1 and 3 and a perforation pitch of either 0.1664 in or 0.1667 in (4.227 mm or 4.234 mm). The width of the 8-mm strip after processing and slitting is also specified.