| 摘要 |
An optical apparatus having an image-forming optical system comprising a movable lens, comprises a lens drive mechanism for moving the movable lens, a focus adjusting device for automatically adjusting an imaging position by moving the movable lens or another optical element, based on detection of a focus detecting device, a detecting device for detecting a temperature change or a humidity change, and a control device for actuating the lens drive mechanism upon stop of operation of the focus adjusting device, based on detection in the detecting device, to move the movable lens for correction.
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