ZEISS OPMI 1: Binocular (10X / 22B) surgical microscope, f = 170, straight ahead optic, zoom 0.4 to 2.5 times (tap changer), working distance 200 mm, field of view in the eyepiece: 60 to 10 mm, halogen lighting 100 watts, with reserve lamp and color filter, brightness infinitely controllable, used
