| 摘要 |
An automatic focusing device capable of preventing the subject to be brought into focus from falling outside the AF block due to a light image shift, comprising: an automatic focusing controller for calculating an optical physical quantity within an automatic focusing block as which an area in image data is specified, and determining the degree of focus of the image data; and a light image shift occurrence determiner for predicting or detecting the occurrence of a light image shift, wherein the automatic focusing controller changes the size of the automatic focusing block when the light image shift occurrence determiner predicts or detects the occurrence of a light image shift.
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