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barrel distortion

American

noun

Optics.

a distortion produced by a lens in which the magnification decreases toward the edge of the field.

barrel distortion British

noun

photog distortion of an image produced by an optical system that causes straight lines at image margins to bulge outwards

"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

Etymology

Origin of barrel distortion

First recorded in 1885–90

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The screen is a 19-inch 4:3 LCD, with a custom barrel distortion filter designed to emulate the style of classic CRT monitors.

From The Verge

The sides instead of being straight bow outwards: this is called barrel distortion.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023