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Photographic lenses - Methods for the measurement of the effective aperture, F-number and relative aperture
出版:Japanese Standards Association

專家解讀視頻
基本信息
標(biāo)準(zhǔn)編號(hào): JIS B 7095:1997
標(biāo)準(zhǔn)類別:Standard
出版單位:Japanese Standards Association
標(biāo)準(zhǔn)頁(yè)數(shù):23
標(biāo)準(zhǔn)簡(jiǎn)介
This Japanese Industrial Standard specifies the measuring methods of effective aperture, F-number and relative aperture of photographic lenses.
等同采用的國(guó)際標(biāo)準(zhǔn)
ISO 517:1996 - Equivalent