Eyepieces magnification 12.5x, pupil distance adjustable range 55mm~75mm, diopter adjustment range +6D ~ -6D. Binocular tube high brightness 0~200°binocular tube Magnification 1:6 manual continuous zoom, 6 steps magnification 2.7x,4.5x, 7.2x,10.8x,18x,27x, ; field of view 74.1mm,44.5mm,27.8mm,18.5mm,11.1mm,7.4mm. X-Y movement device X direction swing 45°, Y direction swing 45° Coaxial illumination LED cold light ,illumination diameter of light spot Φ80mm, illumination intensity 60000lux build-in small-spot, both blue and yellow light filter. Objectives 300mm(±15mm adjustment) Maximum length of arm 1100mm New stand swing angle of the carrier arm 0 ~300°,height from objective to floor 730mm<H<1250mm Weight 107kg