Spine Surgical Operating Microscope  - Specification: Binocular Tube : Ergonomic tiltable viewing 0° - 210° with converging optics Magnification : 0. 4x,0. 63x,1. 0x,1. 6x & 2. 5x with five step magnichanger Eye Piece : WF 10x/16mm with eye guards Working Distance : F=250mm objective lens Focusing : Manual / motorized fine focusing adjustment Light Source : 50W LED up to 60,000 hours of led lamp life Built in Filters : Green & yellow Vertical Movement of Arm : 600mm Optional Accessories : Assistoscope, beam splitter, IVU camera module, eyepieces 12. 5x/16mm, objectives F: 200mm, F=300mm