1 Scope
This International Standard specifies the following:
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- dimensions of film lengths;
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- latent-image frame numbering;
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- latent-image digital bar-codes to identify the filmDX number;
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- dimensions of daylight-loading filmmagazines for use with 135-size cameras;
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- a magazinebar-code that identifies the film's DX number as well as the number of exposures;
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- camera auto-sensing areas, which provide an electrically readable encodement of film speed, number of exposures, and recommended exposure latitude for use with appropriately designed cameras;
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- an information panel on which the film identification, speed and number of exposures are visible through a window in the back of appropriately designed cameras;
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- film pull-out force specification;
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- film-spool attachment strength specification.
This International Standard is not intended to apply to "bulk" 35-mm film used for reloading into 135-sizemagazines, nor to the reloadable magazines themselves. Also, this standard does not apply to 135-sizefilm and magazines that are used in single-use camera applications.