ISO 517:1996
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Photography — Apertures and related properties pertaining to photographic lenses — Designations and measurements
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
05-03-2019
26-12-1996
Pertains to apertures and related properties of photographic lenses affecting the illuminance at the centre of the image. Does apply only to lenses focused on objects at infinity; that is, at least 50 times the focal length of the lens.
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