
Cinematography - Recording head gaps for two sound records on 17,5 mm magnetic film - Positions and width dimensions
出版:International Organization for Standardization

專家解讀視頻
Describes location and sizes of recording head gaps to provide two sound recordings on 17.5 mm films.
KS A ISO 9525:2003 - Identical
DIN 15552-3 (1982-10) - Identical
BS 5550-9.4.1:1989 - Equivalent