Photography — 135-size film and magazine — Specifications

This International Standard specifies the following:

_ dimensions of film lengths;

_ latent-image frame numbering;

_ latent-image digital bar-codes to identify the film DX number;

_ dimensions of daylight-loading film magazines for use with 135-size cameras;

_ a magazine bar-code that identifies the film's DX number as well as the number of exposures;

_ 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;

_ 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;

_ film pull-out force specification;

_ film-spool attachment strength specification.

This International Standard is not intended to apply to "bulk" 35-mm film used for reloading into 135-size

magazines, nor to the reloadable magazines themselves. Also, this standard does not apply to 135-size film and

magazines that are used in single-use camera applications.