Patent ID: 8339466

Claim:
An image stabilization apparatus, comprising: a shooting optical system that shoots an object, in which a principal point of the shooting optical system moves in an optical axis direction of the shooting optical system; an angular velocity detector that detects an angular velocity applied to the image stabilization apparatus and outputs the angular velocity; an acceleration detector that detects an acceleration applied to the image stabilization apparatus and outputs the acceleration; a calculation unit that calculates a position of a principal point of the shooting optical system; a first angular velocity calculation unit that calculates a first angular velocity component about the position of the principal point based on an output of the angular velocity detector; a second angular velocity calculation unit that calculates a second angular velocity component based on an output of the acceleration detector, a calculation result of the first angular velocity calculation unit, and the position of the principal point; and a controlling unit that performs image stabilization control based on a difference between the first angular velocity component and the second angular velocity component.