The lens-moving plate or appliance (600) comprises a lens-placement part (601) for incorporating an enlargement lens (500), and a mirror placement part for incorporating a mirror (403) for introducing light which is transferred to an optical sensor (404) by a film. The lens placement part is either in an illuminated or retracted position. A container for the lens-moving plate blocks external light and has a door opened and closed in the vicinity of the retracted position.
