This is a black version of our popular 7X-180X zoom stereo microscope mounted on a single-arm boom stand. It comes with a trinocular head with super widefield optics, 10X and 20X eyepieces, and a 2.0X Barlow lens, for a zoom ratio of 19:1, a sturdy single-arm boom-stand, and a 144-LED ring-light with controller. 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.