英语词汇“focal plane shutter”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	focal plane shutter
释义	focal plane shutter (ˈfəʊkəl pleɪn ˈʃʌtə) noun photography an opaque shield in a camera, lying in the focal plane of the lens, that, when tripped, admits light to expose the film or plate for a predetermined period, usually a fraction of a second The built-in focal plane shutter makes exposure control much more convenient.
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