Eyepieces magnification 12.5x, pupil distance adjustable range 55mm~75mm, diopter adjustment range +6D ~ -6D. Binocular tube 0°~200°variable angle binocular tube, add new pupil distance adjustment Magnification 6:1 zoom, motorized continuous, magnification 1.8x~21x; field of view Φ13~Φ110mm Coaxial assistant's binocular tube Free-rotatable assistant stereoscope, all direction circumvolve freely, magnification 3x~16x; field of view Φ12~Φ74mm Illumination 100w LED lifetime more than 100000 hours , illumination intensity 100000lux Focusing Motorized 200-450mm X-Y swing The head can swing in X direction +/-45 °motorized, and in Y direction +90°,and can stop in any angle Filiter Yellow filter, Green filter, small spot Maximum length of arm 1200mm New stand swing angle of the carrier arm 0 ~300°,height from objective to floor 800mm<H<1250mm Handle controller 12 functions (zoom, focusing, X-Y swing, take vedio/photo,browse pictures ,autofocus, brightness adjust) Weight 169kg Camera system Optional build-in 1080P camera system, can take vedio/photo, browse pictures Optional atutofocus function