We are offering surgical operating microscope aaom 20-ieyepieces : 12.5x wide field (optional 10x wide field)diopter adjustment : from +6 to - 6eye piece inclination : 60 off verticalinter pupillary distance : adjustable from 55 mm 75 mmworking distance : 200mmmagnification manual 5 step : 0.4x, 0.6x, 1.0x, 1.6x, 2.5xtotal magnification : 3, 5, 8, 13, 20field of view (in mm) : 80, 51, 31, 19, 12fine focusing range : 50 mm motorized foot controlillumination intensity : 80, 000 lux (minimum)brightness : continuously variablelight transmission : fiber optic cablelight source : twin outlet 12v/100w halogen lamp with cold reflectorarms : counterbalanced spring armshorizontal length of arms : 1000 mmvertical height adjustment : minimum 1750 mmvertical height adjustment : maximum 2130 mmrotation of primary arm : 360rotation of secondary arm : 140floor stand : mobile floor standdimensions of base : length 750 mm, breadth 750 mmmobility : on four caster wheelspower supply : ac 220-240 volts or 110 v on requestnet weight : 160 kg. (approx.)accessories are available : for video, still camera, assistance viewingswing and rotation : 0 to 90swing, 360 rotation