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depth of field

noun, Optics, Photography
1.
the range of distances along the axis of an optical instrument, usually a camera lens, through which an object will produce a relatively distinct image.
Also called depth of focus.
Origin
1910-1915
1910-15
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for depth of focus

depth of focus

noun
1.
the amount by which the distance between the camera lens and the film can be altered without the resulting image appearing blurred Compare depth of field

depth of field

noun
1.
the range of distance in front of and behind an object focused by an optical instrument, such as a camera or microscope, within which other objects will also appear clear and sharply defined in the resulting image Compare depth of focus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Contemporary definitions for depth of focus
noun

the distance between the nearest and furthest objects in focus as seen by a camera lens, which varies with the focal length of the lens, its f-stop setting, and wavelength of light

Dictionary.com's 21st Century Lexicon
Copyright © 2003-2014 Dictionary.com, LLC
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depth of focus in Medicine

depth of focus n.
See focal depth.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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