ISO 6033:1983 Preview
Cinematography -- Projection reel size 7 for 8 mm Type S motion-picture film -- Dimensions and specifications
This standard was last reviewed and confirmed in 2017. Therefore this version remains current.
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.
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