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About This Item
The dimensions shown in this standard are for double 8-mm type R motion-picture film spools with a nominal capacity of 100 ft (30 m). These spools are used in cameras of the type in which each roll of film is passed through the camera twice for exposure in accordance with ANSI/SMPTE 231. The spindle holes in the spool are shown with splines which are intended to assist in assuring correct orientation of the spool in the camera.