| 摘要 |
A camera device comprises a camera body having an optical system, an auto focus unit which adjusts a focus of the optical system to an object which exists in a predetermined range-finding area in an image formed by the optical system, a detector which detects a direction and a quantity of an angular acceleration of the camera body, and a control unit which changes a position of the range-finding area based on the direction and the quantity of the angular acceleration detected by the detector.
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