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Photography. 120-size and 220-size films. Dimensions
This International Standard provides specifications for:
dimensions of 120-size and 220-size films and of the spools common to both,
dimensions of the backing paper for 120-size film and the leader and trailer paper for 220-size film, as well as the placement of the paster tape used for attaching these papers to the films,
minimum length of film required in front of the leading edge of the first image and behind the trailing edge of the last image, and
markings on the backing paper and the trailer-paper for identification of the intended photofinishing process.
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