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The GM-171 series Gemology Microscope is highly effective in the observation of gemstones, diamonds, minerals. The microscope’s magnification system produces high definition, high resolution, and life-like colour stereo images.
The GM-171 combines the classic Motic SMZ171 7.5X-50X stereo microscope head with a modern brightfield/darkfield gem stand in an efficient, affordable tool for the gemological and precious minerals industry. Rugged and precise helping users perform identification and analysis quickly and efficiently. A generous 110mm working distance allows easy access and manipulation of the gem. Available in binocular or trinocular version for digital attachments, they feature a swivel base which rotates 360 degrees and tilts 45 degrees to assist client viewing.
The SMZ171 stereo head is an excellent choice for jewelry and gem stone inspection at an affordable price. The parfocal zoom ratio is 6.7:1, offering a magnification range of 7x-50x with dual-sided zoom controls and a working distance of 110mm. The head is inclined 45° and includes lnear sliding interpupillary adjustment of 50mm-75mm.
High Eyepoint widefield 10X/F.N.23 eyepieces come standard, offering dual dioptric adjustment and a broad field of view ranging from 30.67mm to 1.33mm. Optional eyepiece powers include 15X and 20X, for additional magnification of 75X and 100X respectively, without the loss of working distance. The microscope is available in binocular or trinocular format to easily capture digital images for documentation, promotion or client use. Please note that a trinocular adapter is required to fit your camera.
Illumination & Stage
Brightfield / Darkfield illumination is from powerful and consistent 6V30W variable-intensity Halogen with an aperture diaphragm adjustable from 41mm to 2mm. This allows depth of field and contrast control for easier stone identification. Incident illumination is provided by a 7-watt, 6000-degree color temp fluorescent light box on a flexible goose neck arm. The stage offers two mounting points for a gem holder and inclusion pointer along with adaptation for optional contrasting methods like immersion or polarization.
The professional gem stand features dual focus controls for precise movement through 125mm of vertical range, to accommodate different gems and stones. An integral swivel base allows 360-degree rotation and the arm inclines 45 degrees for flexible viewing positions by jeweler or client.