PROBLEM TO BE SOLVED: To provide an optical unit capable of realizing a variety of optical characteristics with a simple configuration.SOLUTION: An optical holding member 53 is pivotally attached to a shaft member 52 so that a movable lens 35 is displaceable between an insertion position of inserting the movable lens 35 on an optical path of an imaging optical system 30 and a retreat position of retreating the movable lens 35 from the optical path in response to rotation of the shaft member 52, and so that the movable lens 35 is displaceable between a progress position and a backward position along an optical axis O of the optical path. First and second electromagnetic drive sources 54 and 55 are respectively arranged at positions offset to one side and the other side in an axial center direction from a peak of a magnetic field generated by the shaft member 52 so as to be able to generate magnetic fields interfering with the magnetic field of the shaft member 52.
