Film 35 mm, sprockets; specifications for the root diameter for all films with standardized film width Film 35 mm, tambours dentés; spécification du diamètre d'appui pour tous les films standardisesBeim Festlegen des Film-Auflagekreis-Durchmessers d1 von
DIN 15530-2:1980 history
1980DIN 15530-2:1980 Film 35 mm; sprockets, specifications for the root diameter for all films with standardized film width