ALLTION is proud to offer the AC-3000 Series Colposcopes, The lenses inside these colposcopes are made by Schott® Optical Glass imported from Germany, which offers excellent optic feature, such as high resolution, long depth of field, etc. Features of Model AC-3900 Colposcope ? Continuous zoom magnification sytem from 2.2x though 12.9x. ? 300mm working distance objective lens offering continuous zoom magnifications from 2.2x to 12.9x ? Optional magnifications / objective lens combinations are available. ? Widefield 12.5x eyepieces with diopter locks and fold-down rubber eyecups for eyeglass wearers. ? Straight binocular head F=160. ? Light lntensity on object plane: 38,000.00 Lux. Min. ? Fan cooled, **dual-port variable fiber optic coaxial illumination with 15V/150W lamp **should lamp fail during an examination, the dual-port feature allows a quick change ? Maximum height from floor to objective lens: 1200mm ? Minimum height from floor to objective lens: 800mm ? Overall distance from the column to the objective lens: 1050mm ? Green filter in selector knob. ? Spare lamp, dust cover and instruction manual. ? Video accessories available