Patent ID: 8395697

Claim:
An imaging apparatus adapted to receive a detachable lens unit, the lens unit including a lens control unit; a lens driving unit that moves a lens to change a focus position; a lens position information detecting circuit that detects position information of the lens; and a first memory that stores position information of the lens; the imaging apparatus comprising: a communication unit configured to communicate with the lens unit; a contrast detection unit configured to acquire an evaluation value corresponding to a contrast of an object image based on a signal output from an image sensor according to light having passed through the lens; a second memory configured to store a plurality of evaluation values acquired by the contrast detection unit at respective different timings; and a controller configured to control a focus position of the lens by causing the communication unit to acquire a plurality of lens position information stored in the first memory, wherein, when the lens is moving due to focusing and the lens control unit is performing acceleration/deceleration processing, lens position information is stored in the first memory without being communicated to the imaging apparatus without synchronization with respect to acquisition of the evaluation value by the contrast detection unit, and without associating the acquired plurality of lens position information with the evaluation values stored in the second memory.