Definition of "autofocus" []

• A feature of some cameras and other optical systems that allows a correct focus on the subject to be obtained automatically (noun)
• To focus automatically. (verb)

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• "Camera behaving badly there's something odd going on with the autofocus, which isn't."
• "Another criticism of the first two lenses available from Olympus for the E-P-series cameras is that they're very slow to autofocus, which is true."
• "The ZR3 brags of a 0. 26-second autofocus, which is pretty good for a point-and-shoot, and is packing a fair-sized 2. 7-inch LCD."