back focus

American  

noun

Photography.

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

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Etymology

Origin of back focus

First recorded in 1895–1900

Example Sentences

"It was a time where I really needed to step back, focus on being present," he said.

From BBC

The High Quality Camera, however, supports interchangeable C- and CS-mount lenses and offers adjustable back focus.

From The Verge

“Instead of following a program to get back focus and productivity I made myself open to idleness,” she says.

From The Guardian

I suggest you step back, focus on your own life and in future encourage your father to do likewise.

From The Guardian

It’s up to the penalty killers to know when to try to force an opposing power play into rushed decisions or when they should hang back, focus on their positioning and eliminate as many threats as possible.

From Washington Post