Patent ID: 8135268

Claim:
A lens control apparatus configured to move a first lens unit for zooming and a second lens unit for focusing, the apparatus comprising: a focus signal generator configured to generate a focus signal indicating a contrast of an object image, wherein the object image is formed by an optical system, wherein the optical system includes the first lens unit, the second lens units, and a light amount adjuster, and wherein the light amount adjuster adjusts a light amount; a memory configured to store data generated for each predetermined in-focus distance and indicating a relationship between a position of the first lens unit and a position of the second lens unit; a detector configured to detect information corresponding to a degree of a defocus for a focusing target; and a controller configured to control, based on the data, movement of the second lens unit accompanying movement of the first lens unit, wherein the controller moves the second lens unit in an infinite direction and a close direction within a movable range set based on the information detected by the detector, wherein the controller changes a movement amount of a center position of the movement of the second lens unit in the infinite and close directions according to an aperture size of the light amount adjuster.