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2017 Word of the Year

back focus

noun, Photography.
1.
the distance between the back surface of a lens and the focal plane when the lens is focused at infinity.
Origin of back focus
1895-1900
First recorded in 1895-1900
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Word Value for back

12
14
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