GM-161/GM-171
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MORE THAN MICROSCOPY Gemology Microscope

Motic New Generation Gemology Microscope The GM-161 / 171 utilizes the optical performance of Motic’s SMZ-171 stereomicroscope to enhance distinct three-dimensional details with a zoom function. Rugged and precise, the optics of the GM-171 performs indentifications, analyses, and measurements more accurately and efficiently, thus reducing your workload. At a working distance of 110mm, manipulation of the inspected gem or the addition of a further apparatus is permitted without obstruction. Available in a trinocular version for photographical or digital capture of the gem, the GM-161 / 171...

Optics GM-161 • Multi-coated lens • Relax View accessible • Magnification range: 0.75X-4.5X • Zoom ratio: 1:6 • Observation angle: 45° • Working distance: 110mm • Interpupillary Distance: 50mm-75mm GM-161 Eyepieces • N-WF10X (ø20) eyepiece, 10X (ø23) for optional, with eyepiece tube adjustable • Field of view range: 30.67mm - 1.33mm • Mount diameter: ø30mm • Reticules: ø25mm GM-171 • Multi-coated lens • Relax View accessible • Magnification range: 0.75X-5X • Zoom ratio: 1:6.7 • Observation angle: 45° • Working distance: 110mm • Interpupillary Distance: 48mm-75mm • Excellent resolution...

Illumination Bright field Illumination Integrating a consistent and powerful 30W Quartz Halogen Bright field illumination with a precise, adjustable aperture diaphragm [ø41mm - ø2mm], you are able to measure with a table gauge the proportions and pavilions of a diamond. Dark field Illumination Dark field is the ideal illumination for observation of inclusions. With Motic’s versatile aperture diaphragm [pictured above], you can control the depth of field and contrast while using the dark field illumination for better identification. Incident fluorescent illumination - Diamond Light Designed...

Holders, Plates, and Analysers Wire Stone holder The ideal holder for diamonds, rubies and sapphires. Comprised of stainless steel for a long working life, the wire Rounded Edge Stone holder stone holder permits the maximum amount of observation. Rounded Edge Stone holder Perfect for irregular gems and jewellery. Precision crafted of stainless steel to provide an adequate grip without corrupting irregular shaped gem samples. Wire Stone holder Inclusion pointer For rapid location of inclusions and fractures on the surface of gem. Inclusion pointer Large gem stage plate Magnetically...

GM-161/ GM-171 Contrasts / Eyepieces / Objective Immersion cell Capable of rapid and easy detection of treated gems characteristics; such as clarity enhancement, HPHT annealing, irradiation, and surface colouration, the immersion cell is especially useful for rubies. Contrasts Polariser Kit Perfect for observing the bireference of crystals and the quality of the finish on certain stones. Mounts conveniently on the zoom body and stage. Diffuser Plate Eliminates identification. Magnetically mountable on the stage. Auxiliary Objectives Auxiliary Eyepieces Additional magnification with the...

Stand Features and Benefits Rotary Base 360° rotary base allows you to showcase the gem to a customer or to confer with a colleague on proper identification. Tilting base With a tilting range of 0° [upright] to 45°, the GM-168’s base is accessible to users of various heights. 45°

Focus Adjustment Allowing for a total travel of 125mm for adaptation to different sizes of gems and stones, no sample is too small or too large. Stage Able to accommodate both a gem holder and inclusion pointer simultaneously in addition to different contrast methods.

Schematic diagram GM-161 Trinocular Gemology Microscope 141 150 GM-171 Trinocular Gemology Microscope 140 150

Optical system Observation angle Magnification range (standard) Zoom ratio 1:6 WF10X (Ø20) / eyepiece tube adjustable N-WF, high eye-point 10X(Ø23), Diopter adjustable interchangeable with biological eyepieces N-WF 12.5X(Ø18), 15X(Ø16), 20X(Ø13) optional Interpupilary adjustment Working distance (standard) C-Mount adapter Photo adapter Photo adapter 2.5X, 4X photo eyepiece available" Photo adapter 2.5X, 4X photo eyepiece available" Auxiliary ESD objectives Incident illumination Transmitted illumination Stand option 7W fluorescent light, colour temperature of 6000K to reduce any yellowing...

Motic Instruments Inc. (CANADA) 130 - 4611 Viking Way. Richmond, BC V6V 2K9 Canada Motic Deutschland GmbH (GERMANY) Christian-Kremp-Strasse 11, D-35578 Wetzlar, Germany Motic Incorporation Ltd. (HONG KONG) Rm 2907-8, Windsor House, 311 Gloucester Road, Causeway Bay, Hong Kong Motic Spain, S.L. (SPAIN) Polfgon Industrial Les Corts, Camt del Mig, 112 08349 Cabrera de Mar, Barcelona, Spain * CCIS® is a trademark of Motic Incorporation Ltd. Motic Incorporation Limited Copyright O 2002-2009 Design Change : The manufacturer reserves the right to make changes in instrument design in accordance...