Galilean type microscope system adopts revolving drum. Excellent optical system for clear and clean image. 14mm aperture help you observe the whole cornea and iris easily, Convenient to examine the foreign object. German imported 6V20W Osram halogen lamp fully use of every beam. High eyepoint and open field eyepiTECs design. Modular design reserve the adapters, Convenient to connect beam splitter, Digital camera adapter and the CCD adapter, Update digital camera or image capture system.