We offer ent operating microscope. Specification of operating microscope for ent:binocular tubes: straight 45 degree inclinedapochoramatic magni changer: 0.4 xs, 0.63 xs, 1.0x, 1.6 xs & 2.5 xsobjectives: f=250, manual fine focuslight source: 15v150w halogen lampbuilt in filters : green or yellowvertical movement arm: 600mmsteps: fiv.