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BSI BS ISO 2721:2013

Photography. Film-based cameras. Automatic controls of exposure
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BSI BS ISO 2721:2013

Photography. Film-based cameras. Automatic controls of exposure

PUBLISH DATE 2013
PAGES 22
BSI BS ISO 2721:2013

This International Standard specifies the exposure at the focal plane of film-based cameras for values of two exposure parameters, i.e. field luminance and film speed, and also describes methods of evaluating other photometric characteristics, such as the acceptance angles of the photoelectric system.

This International Standard applies to automatic exposure control systems which are built into film-based cameras or coupled with them to regulate the exposure in the focal plane as a function of the several exposure parameters. The mechanism can control either the focal-plane illuminance or the exposure-time interval or both. Pointer (or needle) matching systems are included in this International Standard even though they are not fully automatic. This standard is not applicable to digital cameras.

SDO BSI: British Standards Institution
Document Number ISO 2721
Publication Date March 31, 2013
Language en - English
Page Count
Revision Level
Supercedes
Committee CPW/42
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