Patent ID: 8190009

Claim:
An optical apparatus comprising: a lens barrel configured to be capable of being changed over between a retracted state and an expanded state for photographing, the lens barrel comprising a zoom unit for performing a zooming operation, a zoom drive control unit for performing drive control of the zoom unit, a correction member movable in a direction perpendicular to an optical axis, and a drive unit for driving the correction member; a shake detection unit configured to detect a shake of the optical apparatus; a correction control unit configured to calculate a correction amount for shake correction based on an output from said shake detection unit and to cause said drive unit to drive the correction member based on the calculated correction amount; an interference determination unit configured to determine whether or not there is an interference region between said correction member and any one of the zoom unit, the zoom drive control unit, and the drive unit by comparing outputs from said correction control unit at different zoom positions, with each other; and an interference prevention control unit configured to calculate the interference region if there is the interference region between said correction member and any one of the zoom unit, the zoom drive control unit, and the drive unit, and to instruct the correction control unit to cause said drive unit to drive said correction member to a position where no interference with the any one of the zoom unit, the zoom drive control unit, and the drive unit occurs.