| 摘要 |
A lens barrel 1 of the present invention includes a fixed barrel 12 formed in an annular shape and having length in an optical axis direction, a straight-advancing barrel 18 relatively moving in the optical axis O direction with respect to the annular fixed barrel and housed in the fixed barrel in a non-photographing state and extended to an outside of the fixed barrel in a photographing state, and a first annular member 16, 14 placed in the straight-advancing barrel, having length in the optical axis direction, and made of an annular member that turns around the optical axis according to manual operation. When the lens barrel is in a photographable state, at least a part of an outer circumference of an exterior of the first annular member is exposed to an outside and a front end face of the annular member forward in an optical axis direction is located further forward than a front end face of the fixed barrel forward in the optical axis direction, and, when the lens barrel is in an un-photographable state in which the lens barrel is further retracted in the optical axis direction than in the photographing state, a rear end face backward in the optical axis direction is within the fixed barrel and the rear end face is present further backward in the optical axis direction than when the lens barrel is in the photographable state. |
