This standard specifies the cutting and perforating dimensions for 16-mm motion-picture film with perforations along one or both edges and a perforation pitch of either 0.2994 in or 0.3000 in (7.605 mm or 7.620 mm) for the following two categories:a) 16-mm motion-picture films;b) manufacturer-designated 16-mm professional motion-picture camera films with tighter tolerances.