A digital microscope (1) is equipped with: a half mirror (13) that supplies bright field illumination; a ring lens (16) that supplies dark field illumination; and a configuration that changes the mixing ratio of bright field illumination and dark field illumination according to operations by an operating unit (26). The configuration that changes the mixing ratio comprises: an optical fiber bundle (17) that supplies light to the half mirror (13); an optical fiber bundle (18) that supplies light to the ring lens (16); and an optical fiber bundle (19) that directs light from a light source into the optical fiber bundle (17) and the optical fiber bundle (18). A light incident end of the optical fiber bundle (17) and a light incident end of the optical fiber bundle (18) are adjacently positioned in the same direction, and a light emitting end of the optical fiber bundle (19) is positioned facing both of the light incident ends. While a state is maintained in which the light emitting end and both of the light incident ends are facing each other, the light emitting end of the optical fiber bundle (19) is made to move according to the control input by the operating unit (26). Samples can thus be appropriately projected.