英语词汇“flash factor”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	flash factor
释义	flash factor flash factor [′flash ‚fak·tər] (optics) In photography using a photoflash lamp, a number dependent on the lamp and the film speed, equal to the product of the distance of the lamp from the subject and the correct f-number for that distance.
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