An optical apparatus is disclosed which can prevent displacement of subject images due to the initializing operation of the image stabilizing unit from being seen by a photographer through a finder. The apparatus comprises an image-stabilizing unit which includes a movable unit movable for image stabilization and balls movable in conjunction with the movement of the movable unit, and a controller which controls operations of the movable unit. The controller causes the movable unit to perform a specific operation for moving the balls to a specific position within a disappearance period of a subject image in a finder for observing the subject, the specific operation being a different operation from an image stabilization operation of the image-stabilizing unit.

 
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> Flash device, camera device and method and program thereof for the elimination of wasteful power consumption therein

> Rotating device, barrel unit, image sensing apparatus installed with the same

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