标准摘要
[中文适用范围]: 这里描述的7号卷轴的标称胶片容量为15 m,通常用于从冲洗实验室返回胶片。 它被认为在 S 型 8 毫米投影暗盒(封装设备)的所有型号中是可互换的,其卷轴的最大外法兰直径为 75 毫米。 这种类型的卷轴也适合普通的卷轴到卷轴投影设备。 [外文原描述]: The size 7 reel descirbed here has a nominal film capacity of 15 m and is generally used for returning the film from the processing laboratory. It is considered to be interchangeable in all models of 8 mm projection cassettes (encapsulated devices) of type S which take up reels with a maximum outside flange diameter of 75 mm. This type of reel also fits normal reel-to-reel projection equipment.
英文名称Cinematography — Projection reel size 7 for 8 mm Type S motion-picture film — Dimensions and specifications