To provide a single lens reflex camera with a camera shake correcting function capable of reducing the possibility that a gyro sensor for detecting camera shake of the camera erroneously detects vibration caused by the movement of a movable member in the camera, a camera with a camera shake correcting function and an interchangeable lens barrel.

The gyro sensors S1 and S2 detecting the camera shake of a camera body 11 are provided in one end 14 in a width direction of the camera body 11, and an imaging device 20 relatively moving to the camera body so as to negate the camera shake detected by the gyro sensors is provided near the center part in the width direction in the camera body.