ISO 517:2008
Current
The latest, up-to-date edition.
Photography Apertures and related properties pertaining to photographic lenses Designations and measurements
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English
03-10-2008
ISO 517:2008 pertains to apertures and related properties of photographic lenses affecting the illuminance at the centre of the image.
ISO 517:2008 specifies aperture markings for all types of lenses used in still cameras, and gives tolerances for the stop numbers. It also defines aperture stop, entrance pupil, focal length, relative aperture and stop numbers, and gives methods for their measurement or determination.
ISO 517:2008 applies only to lenses focused on objects at infinity; that is, at least 50 times the focal length of the lens.
DevelopmentNote |
Supersedes ISO/DIS 517. (03/2008)
|
DocumentType |
Standard
|
Pages |
8
|
PublisherName |
International Organization for Standardization
|
Status |
Current
|
Supersedes |
Standards | Relationship |
BS ISO 517:2008 | Identical |
DIN ISO 517:2009-05 | Identical |
ASTM E 312 : 2006 | Standard Practice for Description and Selection of Conditions for Photographing Specimens Using Analog (Film) Cameras and Digital Still Cameras (DSC) |
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BS ISO 18383:2015 | Photography. Digital cameras. Specification guideline |
ISO 18383:2015 | Photography — Digital cameras — Specification guideline |
ASTM E 312 : 2006 : R2011 | Standard Practice for Description and Selection of Conditions for Photographing Specimens Using Analog (Film) Cameras and Digital Still Cameras (DSC) (Withdrawn 2017) |
BS ISO 1230:2007 | Photography. Determination of flash guide numbers for electronic flash equipment |
ISO 1230:2007 | Photography Determination of flash guide numbers for electronic flash equipment |
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