0.6X-4.6X Zoom Ratio1∶6.6 binocular trinocular head stereo microscope

Zoom objective：0.6X-4.6X Zoom Ratio1∶6.6 TOT-3 series zoom stereo microscope 10×Eyepiece 10×/Φ22mm high point (with eyecup) Standard Working Distance:110mm Interpupillary Distance 54mm～76mm Observing Tube Binocular/Trinocular/built-in digital camera 45°inclined, 360°rotatable. Up Illumination  3W LED （optional :12V/15W halogen） Down Illumination 3W LED （optional :12V/15W halogen）