Binocular Tubes : Fixed Straight at 90degree Eye Pieces : 10x WF Magnifications : 3 Step (5x, 10x, & 20x) Objective Lens : F=200mm Field of View : 50mm IPD Adjustment : 55mm to 75mm Fine Focusing : Manual Fine Focusing by knob Illumination : Through Fiber Optic Light Source 15V/150W twin Halogen Lamps Light Intensity : 80,000 Lux max. at standard conditions Field of Illumination : 70mm Arm : Counter balanced pantographic arm with 320 degree rotation. Vertical Range of Counter Balanced Arm : 250mm to 300mm Table Clamp Model : To be fixed on table, easy installation. Weight : 20kg (Approx.) Power : AC 220V, 50/60Hz. (110V on request)