Amscope gm400tz 3.5x-90x advanced jewel gem stereo zoom microscope this high quality microscope is designed for professional jewelers and gemologists. It includes a 3.5x-90x super widefield zoom stereo microscope head, 3d jewelry/gem clamp (tweezers), rotatable round stage with darkfield iris condenser and professional gem stand. It offers 8" (200mm) working distance, 2-1/2" (65mm) super wide field of view and 26:1 large zoom magnification range. The microscope is illuminated with a 30w darkfield halogen light built in to the base and a 7w gooseneck rectangular fluorescent incident light box, providing rich spectrum, high-temperature color and close-to-daylight illumination. The incident light box shines light down onto objects, used to observe the surface details and fine structures of jewels or gemstones. The transmitted light through the darkfield condenser is designed for the examination of the inside quality of diamonds. This microscope is manufactured under the strict guidelines established under iso 9001:2000 standards. features: a high quality professional 3.5x-90x trinocular jewelry/gem microscope with rotatable darkfield stage a right microscope for distinguishing genuine & imitation gems and judging production origin comfortable ergonomic design high resolution sharp images with both bright and dark field illumination large rotatable round stage with built-in darkfield condenser, 3d gem clamp and graduations adjustable stand for easy and comfortable observation possible to measure gem angles advanced halogen system providing rich spectrum, high-temperature color, and close-to-daylight illumination flexible gooseneck-supported rectangular incident (top) fluorescent lamp bright halogen bottom light with dimmer for best darkfield illumination built-in darkfield condenser with iris 3d flexible gem clamp 45 degree inclined 360 degree rotatable trinocular head trinocular port
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