Patent ID: 8854742

Claim:
A lens barrel comprising: a master flange provided at one end of the lens barrel in an optical axis direction; a cam frame including a cam groove; and a movable frame including a tubular cylinder extending in the optical axis direction and a cam follower engaged with the cam groove, moving relative to the master flange in the optical axis direction and spaced apart from the master flange at least when shooting, wherein the cam follower is provided in an end portion of an outer or inner circumferential surface of the tubular cylinder in the optical axis direction, a protrusion protruding in the optical axis direction is provided on an end surface of a portion of the tubular cylinder in the optical axis direction, in which the cam follower is provided, and a contact portion contacting the master flange in a retracted state of the movable frame is formed with the protrusion of the movable frame.