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  • BSI
    BS ISO 2721:2013 Photography. Film-based cameras. Automatic controls of exposure
    Edition: 2013
    $313.97
    / user per year

Description of BS ISO 2721:2013 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.



Standard NumberBS ISO 2721:2013
TitlePhotography. Film-based cameras. Automatic controls of exposure
StatusConfirmed
Publication Date2013-03-31
Identical National Standard OfISO 2721:2013
DescriptorsPhotographic film, Photography, Testing conditions, Monochrome photography, Monochrome photographic film, Sensitometry, Specimen preparation, Still photographic film, Test equipment, Classification systems, Marking, Photographic materials, Accuracy
ICS37.040.10 Photographic equipment. Projectors
CommitteeCPW/42
ISBN978 0 580 80718 3
PublisherBSI
Pages22

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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