Abstract

This specification discloses an image blur preventing apparatus having a movable member moved for image blur prevention, a driving device producing a drive force for operating the movable member in conformity with a signal conforming to the blur, a regulating member for regulating the movement of the movable member, the regulating member being movable to a regulating position for effecting the regulation and a non-regulating position in which the regulation has been released, and a step driving motor for moving the regulating member to at least one of the regulating position and the non-regulating position,:wherein the regulating member is moved by the step driving motor and the regulating member is held at a predetermined position by its self-holding force during the non-electrical energization of the step driving motor.