An image capturing device, including an rectangular image capturing element having long sides and short sides; an image capturing optical system forming an image of a subject on the rectangular image capturing element; a first driving device which moves the rectangular image capturing element in a first direction slanted by a predetermined angle from the long side and the short side of an outer shape of the rectangular image capturing element in a plane perpendicular to an optical axis of the image capturing optical system; and a second driving device which moves the rectangular image capturing element in a second direction slanted by a predetermined angle from the long side and the short side of the outer shape of the rectangular image capturing element in the plane perpendicular to the optical axis of the image capturing optical system, but the second direction differs from the first direction.