DS ISO 2721:2013現(xiàn)行
Photography - Film-Based Cameras - Automatic Controls Of Exposure
出版：Danish Standards
專家解讀視頻
基本信息
標準編號： DS ISO 2721:2013
發(fā)布時間：2013/5/31 0:00:00
標準類別：Standard
出版單位：Danish Standards
標準頁數(shù)：24
標準簡介
Defines 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.
