The amount of parallax of a 3D image can be adjusted by intuitive operation. A zoom lever is thrown to telephoto side to cause the graphic processing unit to generate images for the left eye and the right eye adjusted such that a position where a component is drawn is far from a center line and the zoom lever is thrown to wide angle side to cause the graphic processing unit to generate images for the left eye and the right eye adjusted such that the position where the component is drawn is near the center line.