Patent ID: 8531585

Claim:
A camera on which a plurality of lens apparatuses capable of switching between an autofocus mode and a manual focus mode are selectively mounted, comprising: an image-pickup element which photoelectrically converts an object image formed by an image-taking optical system in a lens apparatus mounted on the camera; a first detection section which detects a defocus amount of the image-taking optical system; a second detection section which executes a detection of a correction amount for correcting the defocus amount detected in the first detection section, wherein in the detection of the correction amount the lens apparatus mounted on the camera is driven; and a controller which performs a control to cause the lens apparatus mounted on the camera to become in an in-focus state with respect to an object, based on an image obtained via the lens apparatus mounted on the camera and on the detected correction amount, wherein when the lens apparatus mounted on the camera is in the manual focus mode, the second detection section disables the detection of the correction amount.