Patent ID: 8355626

Claim:
A lens-interchangeable camera comprising: a focus detector configured to perform focus detection; and a controller configured to perform a drive control of a lens based on a defocus amount detected by the focus detector, wherein the controller finishes focusing operation without driving the lens when the defocus amount is in a range of a first in-focus determination width of the lens, and performs the focusing operation when the defocus amount is out a range of the first in-focus determination width, wherein the controller finishes the focusing operation without performing the focus detection again after completing the drive of the lens when the defocus amount is in a range of a second in-focus determination width of the lens, and performs the focus detection again after completing the drive of the lens when the defocus amount is out a range of the second in-focus determination width, and wherein the second in-focus determination width is set so as to be greater than the first in-focus determination width and to be greater than or equal to a drive limit value of the lens based on information obtained from the lens.