In a hologram recording in which the interference pattern of a signal beam and a reference beam is recorded as page data, a holographically reconstructed image that exhibits good reconstructed data quality can be acquired when the relative positions of a hologram recording within a recording medium associated with an optical system during reconstruction and during recording, match. However, because the distance between the optical system base point during recording and the recording medium changes per recording location due to mechanical flaws in the recording medium and differences in mechanisms that support the recording medium, the depth of the hologram recording within the recording medium changes. Hence, during reconstruction, the hologram cannot be reconstructed at high speed. In the present invention, the distance between the optical system base point, which is associated with a recording medium address during recording, and the recording medium is measured, and said distance is recorded in a memory. During reconstruction, distance information, which is the distance of the recording medium from the memory that is associated with a recording medium reconstruction address, is read, and the position of an aperture filter is adjusted at high speed in the optical axis direction on the basis of the read distance information and a distance measurement result for the optical system base point during reconstruction and the recording medium. Thus, the relative positions of the hologram within the recorded medium associated with the optical system during reconstruction and during recording can be matched.