: 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.
Its 24-600mm zoom lens can handle nearly any scene, its Type 1 sensor rivals the best smartphones for picture quality, and its autofocus system is right up there with what pros are used to from the latest mirrorless cameras. Jim Fisher, PC Magazine, 9 July 2026 From here, autofocus, obstacle avoidance and keystone correction do the rest. New Atlas, 29 June 2026 Highlights for me include the incredibly fast autofocus, which is accurate and intelligent. Paul Brett, Space.com, 15 May 2026 Nowhere is this evolution more apparent than in the autofocus system. Robb Rice, Robb Report, 10 May 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 15 Jul. 2026.

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