标准摘要
[中文适用范围]: 本国际标准规定了 35 毫米未曝光电影胶片和 35 毫米磁性胶片的切割和打孔尺寸以及所使用的打孔类型。 [外文原描述]: ISO 491 specifies the cutting and perforating dimensions for 35 mm unexposed motion-picture film and 35 mm magnetic film, and the types of perforations used.
英文名称Cinematography — 35 mm motion-picture film and magnetic film — Cutting and perforating dimensions