英语词汇“back focus”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	back focus
释义	WordReference Random House Unabridged Dictionary of American English © 2024 back′ fo′cus, [Photog.] Photographythe distance between the back surface of a lens and the focal plane when the lens is focused at infinity. 1895–1900
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