A lens unit 20 including an imaging optical system 31 and an imaging unit 33 to generate an image signal of an imaged image is supported rotatably in a yawing direction and in a pitching direction. Based on a shake which is applied to the lens unit 20 and is detected by a shake detection unit 61, a barycentric position of the lens unit 20 which position is calculated by a barycentric position calculation unit 62, and a position of the lens unit 20 which position is detected by a position detection unit 46, a driving operation by a drive unit 45 to perform rotation driving of the lens unit 20 in the yawing direction and in the pitching direction is controlled and image blur correction of the imaged image is performed. Even when the barycentric position of the lens unit varies due to a focus adjusting operation, a zooming operation, or the like, it becomes possible to perform optimal image blur correction and to improve performance in image blur correction.