M00002920
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ISO 9559:1989 [ Withdrawn ] Photography -- 35 mm filmstrip projectors -- Specifications for frame masks
standard by International Organization for Standardization, 12/01/1989
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Availability date: 2021-11-25
Specified are the dimensions of and requirements for frame masks in the projectors. Picture framing on filmstrip is achieved either by an opaque border directly exposed on the film or by means of an additional frame mask in the projector.