My camera makes a funny sound when it autofocuses.
The camera was autofocused before the picture was taken.
A device that focuses a lens, camera, etc. automatically.
A feature of all digital cameras that automatically aligns the lens to make the subject in the image sharp (in focus). Pressing the shutter button halfway down generally displays a rectangle in the viewing screen indicating where the camera has identified the subject. See focal length.
(electronics) A feature of some cameras and other optical systems that allows a correct focus on the subject to be obtained automatically.
This camera has autofocus, so it's more expensive.