Patent ID: 8989568
Filing Date: 2015-03-24
Classification: G02B,G03B,H04N

Abstract:
1. An interchangeable lens detachable from a camera, the interchangeable lens comprising: a variator lens configured to change a focal length by moving in an optical axis direction; a focus lens configured to change a focusing state of an object image by moving in the optical axis direction; a diaphragm configured to adjust an amount of light; an acquisition unit configured to acquire an amount of change in image magnification corresponding to information about a position of the variator lens, information about a position of the focus lens, and information about an aperture value of the diaphragm; and a lens control unit configured to transmit information representing the amount of change in image magnification to the camera, wherein the camera determines whether the focus lens to be wobbled for focus adjustment, based on the information representing the amount of change in image magnification received from the lens control unit, and transmits a drive command for the focus lens to the lens control unit, and wherein the lens control unit drives the focus lens based on the drive command.