A lens barrel, including, a moving frame (2) to hold a lens (8), a
direct-advance ring (4) provided on an outer periphery of the moving
frame and movable relative to the moving frame in an optical direction, a
resilient member (6) provided between the moving frame and the
direct-advance ring, and a control part (10) provided on the moving frame
to control an amount of movement of the direct-advance ring in the
optical direction.