3.5X-90X Trinocular Stereo Zoom Microscope on Single Arm Boom Stand. This trinocular 3.5X-90X zoom stereo microscope on a single-arm boom stand gives crystal clear sharp images. It comes with a trinocular head with super widefield optics and a sturdy single-arm boom stand. 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. It is made by the same technicians and on the same production line as optical instruments for Leica, Zeiss, Nikon and Olympus. It is brand new in factory box. Shipping Weight: 65 lbs.