"Latest three dimensional Zoom Microscope" STM-88 offer users the most extended zoom range of any such instrument, along with modularity, comfort and ultra-high-performance microscope optics. Extra wide field eyepiece & parafocal zoom objectives to producecrisp distortion free three dimensional images. Well designed pole stand with extension pillar provides high working distance upto 88mm. Dual light stand combining bright transmitted incident illumination provider an even field of illumination.