back focus

back focus

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

Origin:
1895–1900
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Back focus is always a great word to know.
So is daily. Does it mean:
a shot inserted in a film to indicate the passage of time between two scenes, as of a series of newspaper headlines or calendar pages being torn off
a series of shots from the previous day's shooting, selected by the director to be viewed for possible inclusion in the final version of the film
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