DM on Pole Stand, 10X – 20X magnification, optional ring light illuminationThe DM Dual Mag stereoscope on a pole stand goes beyond the demands of educators and is built to withstand daily use by students or hobbyists. Ready for use in the field, the DM’ s wide-field optics gather ambient light for use without powered illumination, while the pole mount base offers flexibility and portability. The LED ring light options give the DM a 360 degree flood of light for shadow-free illumination of irregular surfaces. Aluminum alloy construction Acid and reagent reistant flush.