The present invention provides a camera system with an image blur
prevention function, including: an interchangeable lens, a camera main
body to which the interchangeable lens is detachably attached, a first
switch which is disposed in the interchangeable lens and indicates
execution of the image blur prevention function, a second switch which is
disposed in the camera main body and indicates the execution of the image
blur prevention function, and a controller which controls an on/off
operation of the image blur prevention function of the camera system in
accordance with at least one state of the first switch and the second
switch.