This is a black version of our popular 3.5X-90X zoom stereo microscope mounted on a single-arm boom stand. It comes with a trinocular head with super widefield optics, 10X eyepieces, for a zoom ratio of 26:1, a sturdy single-arm boom-stand, and an 8 watt fluorescent ring light. The trinocular port enables to add photographic or video capability to the microscope. Its 45 degree inclined trinocular oculars and high-eyepoint optical design ensures a comfortable observation for all kinds of users including eyeglass wearers. The single-arm boom stand allows to turn the microscope head around two different axes, allowing you to point microscope head in various directions. This microscope offers high resolution, super widefield of view, large magnifying zoom range and long working distance. It is an ideal instrument for researchers, gemologists, engravers, and anyone in semiconductor and/or electronics industry.