| 摘要 |
An electronic camera includes an imager. The imager has an imaging surface to which an optical image of an object scene passing through an optical lens is irradiated. A detector detects a high-frequency component of a partial object scene image belonging to an adjustment area out of the object scene image generated in the imaging surface. A changer changes the distance from the optical lens to the imaging surface step by step. An adjuster adjusts the distance from the optical lens to the imaging surface to an appropriate distance on the basis of the high-frequency component detected by the detector in parallel with the changing processing by the changer. A restarter restarts the changer by changing a size and/or a position of the adjustment area in response to an acceptance of an area changing instruction.
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