Reference number
ISO 2721:2013
ISO 2721:2013
© ISO 2024
International Standard
ISO 2721:2013
Photography — Film-based cameras — Automatic controls of exposure
Edition 2
2013-03
2013-03
ISO 2721:2013
62742
Published
(Edition 2, 2013)
This publication was last reviewed and confirmed in 2023.
Therefore this version remains current.
Abstract
ISO 2721:2013 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.
ISO 2721:2013 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.
Life cycle
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Previously
WithdrawnISO 2721:1982
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Now