: an automatic focusing system (as on a camera)
autofocus verb

Examples of autofocus in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There are some good and bad to the SL3-P's autofocus system. Jim Fisher, PC Magazine, 25 June 2026 Nowhere is this evolution more apparent than in the autofocus system. Robb Rice, Robb Report, 10 May 2026 From here, autofocus, obstacle avoidance and keystone correction do the rest. New Atlas, 29 June 2026 The result is sharp focus across the frame without the need for an autofocus lens, but with relatively poor low-light performance that relies on a powerful flash. Paul Monckton, Forbes.com, 22 Apr. 2026 See All Example Sentences for autofocus

Word History

Etymology

auto- + focus entry 2

First Known Use

circa 1937, in the meaning defined above

Time Traveler
The first known use of autofocus was circa 1937

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Cite this Entry

“Autofocus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/autofocus. Accessed 7 Jul. 2026.

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