Lens barrel and lens unit

A lens barrel comprising:

• a fixed barrel;
• a lens holder holding a movable lens group, and disposed on the fixed barrel so as to be movable in an axial direction of the fixed barrel;
• a cylindrical rotating member disposed so as to be rotatable with respect to the fixed barrel;
• and
• a lens drive operation member connecting the lens holder and the rotating member, and driving the lens holder in the axial direction by rotation operation of the rotating member, wherein
• the lens drive operation member has a cylindrical drive operation member body connected to the rotating member, and a connecting portion connecting the drive operation member body and the rotating member,
• the drive operation member body is disposed so as to be rotatable about an axis of the fixed barrel and so as not to be movable in the axial direction, and drives the lens holder in the axial direction when rotated about the axis of the fixed barrel,
• the connecting portion includes a first connecting member and a second connecting member disposed to have a distance therebetween in a circumferential direction of the fixed barrel,
• the first connecting member is formed integrally with the drive operation member body, and
• the second connecting member is a member formed separately from the drive operation member body, and is held by the drive operation member so as to be capable of adjusting a holding position.