This is a trinocular 7X-45X zoom stereo microscope that provides clear and sharp images. It features a trinocular head with 30mm ultra-wide angle, high-eyepoint 10X eyepieces, and dual-arm heavy-duty boom mounts. The 45-degree inclined trinocular and high eye point design ensure easy observation, especially suitable for glasses wearers. Rubber goggles provide further comfort. A trinocular port can add photography or video capabilities. The dual-arm boom mount allows you to turn the microscope head around three different axes (x, y, and z), allowing the microscope head to point in any direction. This microscope offers high resolution, an ultra-wide field of view, a 6.5:1 magnification zoom range, and a 4 (100mm) working distance. It is ideal for research laboratories, gemologists, engravers, collectors, and the semiconductor and/or electronics industries Anyone. This stereo zoom microscope is built by the same technicians on the same production line as Nikon and Olympus optical instruments. It is brand new and comes in a factory sealed box. Specification: Zoom body zoom range: 0.7X-4.5X Zoom Ratio: 1:6.5 maximum. Optical magnification: 2.1X-270X Field of view: 1mm-95.2mm Working distance: 30mm-165mm Built-in 1X lens working distance: 100mm Optional eyepieces: 10X, 15X, 20X, 25X and 30X Optional auxiliary lenses: 0.3X, 0.5X, 0.75X, 1.5X and 2X Optional video couplers: 0.3X and 0.5X (for trinocular tubes) PTZ: 45 degree tilt 360 degree rotation trinocular Eyepiece: 30mm super wide-angle high eye point WF10X/20 Objective lens: 0.7-4.5X Zoom range: 6.5:1 Maximum field of view Minimum field of view Diopter adjustment