We offer ent operating microscope. Specification of operating microscope for ent: binocular tubes: straight 45 degree inclined apochoramatic magni changer: 0.4 xs, 0.63 xs, 1.0x, 1.6 xs & 2.5 xs objectives: f=250, manual fine focus light source: 15v150w halogen lamp built in filters : green or yellow vertical movement arm: 600mm steps: fiv.