Patent ID: 7755695

Claim:
A lens apparatus which is mounted on an image-taking apparatus, the lens apparatus comprising: a focus lens unit; and a controller configured to generate a drive signal based on a focus control signal and a type of focus of the lens apparatus to control drive of the focus lens unit using the drive signal, wherein the focus control signal represents a drive target position or a drive speed of the focus lens unit, wherein, when auto-focus is performed, the controller receives from the image-taking apparatus the focus control signal calculated by a processor provided in the image-taking apparatus based on an evaluation value for the auto-focus obtained in the image-taking apparatus, and wherein, when manual focus is performed in response to an operation of a first focus operation member directly connected to the image-taking apparatus, the controller receives from the image-taking apparatus the focus control signal generated according to an operation amount of the first focus operation member, and when the manual focus is performed in response to an operation of a second focus operation member connected to the lens apparatus not through the image-taking apparatus, the controller receives from the second focus operation member the focus control signal generated according to an operation amount of the second focus operation member.