Eyepieces magnification 12.5x, pupil distance adjustable range 55mm~75mm, diopter adjustment range +6D ~ -6D. Focus of second object lens 125mm Binocular tube high brightness 45°binocular tube Magnification manual 3-step changer, total magnification 6x,10x,16x; field of view Φ34mm,Φ20mm,Φ13mm Coaxial assistant's binocular tube manual 3-step changer, total magnification 6x,10x,16x; field of view Φ34mm,Φ20mm,Φ13mm Coaxial illumination illumination diameter of light spot Φ50mm, illumination intensity 60000lux Objectives f200mm(175mm, 250mm etc ) Focusing motorized, range +/-25mm, speed 33s/whole distance Maximum length of arm 1100mm New stand uptodate stand with new locking wheels Foot switch waterproof Weight 107kg