Patent ID: 7447426

Claim:
An optical apparatus, which controls the drive of a second lens unit for correcting displacement of an image plane associated with the movement of a first lens unit for variation of magnification, comprising: a memory, which stores data indicating the position of the second lens unit according to the position of the first lens unit, the position of the second lens unit including a first position, a second position and a third position, the second position being between the first position and the third position; and a controller, which generates lens control information based on the data, and controls the drive of the second lens unit based on the lens control information, wherein the controller controls the drive width of the second lens unit at the third position with a first driving condition in a case where the drive of the first lens unit is started from the first position, and controls the drive width of the second lens unit at the third position with a second driving condition in a case where the drive of the first lens unit is started from the second position, and wherein the drive width of the second lens unit at the third position with the second driving condition is smaller than that with the first driving condition.