| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel capable of effectively preventing degradation of a photographic image.SOLUTION: A lens barrel comprises: a storage part 37 storing information of magnification fluctuation rate showing the relation between a unit moving amount of a focusing lens in the optical axis direction and a magnification fluctuation of an image by an optical system for each position in the optical axis L1 direction of a zoom lens 32; a transmitting/receiving part 36 for receiving a wobbling drive signal from a camera body 2; a drive control part 36 for driving and wobbling the focusing lens 33 on the basis of the wobbling drive signal; and a control part 36 for determining whether the fluctuation amount of image magnification when driving and wobbling according to the wobbling drive signal is equal to or more than a predetermined value on the basis of information of a lens position of the zoom lens and information of the magnification fluctuation rate corresponding to the position of the focusing lens in the optical axis direction, and inhibiting the wobbling drive of the focusing lens if the fluctuation amount is equal to or more than the predetermined value. |
