Patent ID: 8861094

Claim:
A lens barrel, comprising a rotational drive source, a male-screw-shaped member that is provided parallel with an optical axis, and rotates by rotation of the drive source; first frame means that moves in an optical axis direction; second frame means that rotates by receiving a manual operation; a first rotational member that rotates by receiving the rotation of the second frame means; and a second rotational member that is screwed onto the male-screw-shaped member, wherein when the second frame means is rotated, the second rotational member rotates on the male-screw-shaped member by being linked with the rotation of the first rotational member, and moves on the male-screw-shaped member to press the first frame means in the optical axis direction, and when the male-screw-shaped member rotates by the rotation of the rotational drive source, the second rotational member moves on the male-screw-shaped member to press the first frame means in the optical axis direction.