OPERATING MICROSCOPE: Magnification: 5x to 25x OR 5 Step Magnifications: 4x, 6x, 10x, 16x and 25x. Eye Pieces : 10x / 15x Dioptric Adjustment Field of View : 50mm Objective Lens: F=200 (also available 250, 300, 400mm) Working Distance: 8 inches to 12 inches IPD Adjustment: 55mm to 75mm Fine Focusing : By Motorized Foot Control Fiber Optic Light Source: 15V/150W Illumination Control: Continuous Adjustment Field of Illumination: 70mm Filter: Cobalt Blue, Green Floor Stand Model Vertical Range of Counter Balanced Arm : 250mm to 300mm Base : 2.5 foot Weight : 55kg Height : 4.5 foot Electrical Power : AC 110V, 220V, Power Consumption : 220VA OPTIONAL ACCESSORIES 1. Beam Splitter with Camera Mount 2. CCD Camera