This is a trinocular 3.5X-45X zoom stereo microscope on a versatile double-arm boom stand with a variable 144-LED ring light, giving crystal clear sharp images and bright cool lighting illumination. It comes with a trinocular head with 30mm super widefield high-eyepoint eyepieces, a heavy-duty double-arm boom stand and a LED ring light with dimmer. Its trinocular port enables to add photographic or video capability. The versatile double-arm boom stand allows you to turn the microscope head around three different axis (x, y, and z), allowing you to point the microscope head toward to ANY direction you wish. The variable LED ring light is lighting-direction changeable and lighting-intensity adjustable, providing cool, even and bright LED illumination. It comes with a specially designed control box allowing you to turn on/off each portion of the ring light separately and change the lighting direction for obtaining the best stereo images. This microscopy system offers high resolution, super widefield of view, large magnifying zoom range and long working distance. It is an ideal instrument for gemologists, engravers, coin collectors, manufacturing engineers and anyone in semiconductor and/or electronic industry. This microscope is also a right microscope for biological laboratory applications that require low heat release. Made by the same OEM supplier that provides optical instruments for Leica, Zeiss, Nikon and Olympus, it arrives brand new in a factory sealed box. Its retail value is $1,900.