<p>An optical pickup (100) performs recording and reproduction to and from a plurality of recording mediums (10). The optical pickup is provided with a first spherical aberration correcting means (103) for correcting a spherical aberration corresponding to a substrate thickness of the recording medium, and a second spherical aberration correcting means (107) for correcting the remaining spherical aberration after the correction by the first spherical aberration correcting means, at an accuracy equivalent to that of the spherical aberration correction by the first spherical aberration correcting means or higher.</p>
