back focus

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noun Photography.

the distance between the back surface of a lens and the focal plane when the lens is focused at infinity.

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CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?

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Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

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Origin of back focus

First recorded in 1895–1900

Words nearby back focus

backfit, backflash, backflip, back float, backflow, back focus, back foot, back formation, back forty, back four, backgammon