Definition of autofocus in English:


Syllabification: au·to·fo·cus
Pronunciation: /ˈôtōˌfōkəs


  • 1A device that focuses a camera or other piece of equipment automatically.
    More example sentences
    • In either case, you'll know when you're trying to take a picture that's beyond the camera's close-focus capability, because the autofocus won't lock on.
    • The larger issue concerns the fact that some purchasers of the new digital model are complaining that the autofocus doesn't work properly; that the camera focuses slightly ahead of or behind the intended spot.
    • Actually, where the latter is concerned you've no choice, but I often find myself turning off the autofocus and twisting the focus ring manually, too.
  • 1.1Automatic focusing.
    More example sentences
    • If you were to photograph people, then I would say autofocus would be useful.
    • The combination of low angle, wide lens and autofocus created a unique perspective.
    • When shooting, the camera is satisfyingly responsive, with quick autofocus and minimal shutter delay.



More example sentences
  • Because a dedicated flash's output is mated to the autofocusing system, the camera even knows how far away your subject is.
  • Cells were monitored in an inverted phase contrast microscope with autofocusing controlled by dedicated software.
  • One option would be to use the precision-engineered rings of piezoelectric ceramic used in stills cameras to move an autofocusing lens.

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