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ISO/DIS 517現(xiàn)行
Photography - Apertures And Related Properties Pertaining To Photographic Lenses - Designations And Measurements
出版：International Organization for Standardization
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基本信息
標(biāo)準(zhǔn)編號： ISO/DIS 517
發(fā)布時間：2007/12/10 0:00:00
標(biāo)準(zhǔn)類別：Draft
出版單位：International Organization for Standardization
標(biāo)準(zhǔn)頁數(shù)：8
標(biāo)準(zhǔn)簡介
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.
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