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Image pickup apparatus, control method thereof, control program thereof and storage medium, with movement of focus lens on basis of evaluation values extracted by long period scan upon failure of detection of peak position by short period scan
Image pickup apparatus, control method thereof, control program thereof and storage medium, with movement of focus lens on basis of evaluation values extracted by long period scan upon failure of detection of peak position by short period scan
Evaluation values are extracted at first timings with respect to a movement of a focus lens, and evaluation values are extracted at second timings having higher frequency than the first timings on the basis of the evaluation values extracted at the first timings. Then, even if the evaluation values have been extracted at the second timings in such a way, the focus lens is moved on the basis of the evaluation values extracted at the first timings. Thereby, the fast and suitable movement of AF can be implemented.
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