Imaging apparatus with camera-shake correction function, camera-shake correction device, and camera-shake correction method

When an image is photographed via a plurality of optical members which are disposed along a photographing optical axis, a direction and an amount of shake, which occurs, are detected. An imaging device is moved along a plane perpendicular to the photographing optical axis, on the basis of the detected direction and amount of shake. A position on the photographing optical axis of at least one of the optical members is corrected in accordance with data of the movement.