In order to efficiently remove dust, an image pick up apparatus is provided with an image sensor for acquiring subject images via a photographing lens, a shift mechanism, holding the image sensor, capable of moving the image sensor in a first direction orthogonal to the optical axis of the photographing lens, and in a second direction that is different from the first direction, a sensor arranged in front of the image sensor, for detecting vibration applied to the optical element that is displaced by the shift mechanism together with the image sensor, and a controller for driving the shift mechanism according to output of the sensor for detecting vibration when operation is carried out to prevent image shake due to vibration applied to the image pickup apparatus, and moving the shift mechanism in accordance with a specified pattern regardless of sensor output when carrying out a dust removal operation for removing dust that has become attached to the surface of the optical element.