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Motic GM-171 Gemological Trinocular Stereo Zoom Microscope 7.5x-50x Working Distance 110mm Specs
| Brand | Motic |
| Full Model Code / SKU | GM-171 Trinocular Gemology Core (Camera-Ready Flagship Galilean Workspace) |
| Country of Origin | Germany / China |
| Microscope Type | Flagship Trinocular Gemological Stereo Zoom Microscope with Phototube Assembly and Common Main Objective Galilean Optics |
| Optical System Type | Common Main Objective (CMO) Galilean Optical System delivering parallel optical paths to eliminate fatigue and ensure distortion-free fields |
| Observation Tube Type | Trinocular Head Unit, Siedentopf type with top vertical imaging exit port mapping internal light beam splitter blocks (50:50 split ratio) |
| Tube Inclination & Rotation | Comfortable 45° viewing posture tilt, 360° rotating head section, 50-75 mm interpupillary distance tracking adjustability |
| Eyepiece / Field of Number | N-WF 10x / 23 mm (Extra-wide field high-eyepoint ocular modules with independent diopter adjustment rings on both tubes) |
| Nosepiece Design | Continuous zoom optical turret layout driven by a large 1:6.7 ratio bilateral side-mounted control dial |
| Objectives Classification | Plan Achromatic Common Main Objective System with high numerical apertures and absolute geometric distortion correction |
| Objectives Magnification Breakdown | Continuous zoom objective ratio tracking across a 0.75x to 5.0x scaling path |
| Total Magnification Range | Continuous zoom from 7.5x up to 50x parameters with standard 10x eyepieces |
| Focusing Type & Graduation | Heavy-duty coarse focusing system with integrated mechanical tension tuning adjusters; complete focusing stroke range exactly 125 mm |
| Stage Dimensions & Surface Coating | Specialized multi-functional gem stage block measuring 306 x 236 mm with dual-sided mounting threads for auxiliary holding tools |
| Stage Travel Range & Controls | Extended base assembly tracking a full 0° to 45° comfort incline tilt range alongside a complete 360° rotary base layout |
| Condenser Type & Numerical Aperture | Integrated adjustable darkfield iris diaphragm assembly controlling light fields across a Ø41 mm down to Ø2 mm opening profile |
| Illumination Transmitted Type | Base integrated 6V / 30W Quartz Halogen transmissive bulb for precise deep brightfield and darkfield inclusion mapping |
| Illumination Epi-EPI/Reflected | Top frame mounted 7W cool white fluorescent lamp module tracking over a highly flexible, position-retaining metal gooseneck arm |
| Light Intensity Management | Base integrated electronic variable analog rotary potentiometer layout for smooth brightness logging controls |
| Camera Port / C-Mount Adapter Split | Top vertical straight photo exit tube configured for separate c-mount adapter sleeves to mount external digital imaging sensors |
| Contrast Methods Capability | Advanced Galilean darkfield inclusion tracking, parallel-beam microphotography documentation, transmitted brightfield analysis, polarization testing |
| Power Supply & Voltage Input | Internal universal switching auto-voltage power state system accepting 100-240V AC electrical currents |
| Physical Dimensions & Net Weight | Chassis depth 391 mm, profile width 236 mm, complete assembly height 530 mm, structure net weight exactly 9.8 kg |
| Standard Package Accessories Included | GM-171 gemology base and trinocular Galilean head, vertical top photo port cover cap, 7W gooseneck fluo lamp, internal halogen block, professional stainless steel wire stone holder, diffuse lens attachment, vinyl dust cover, aluminum industrial transit lock case |
| Primary Application & Environment | Digital diamond valuation registries, high-end gemstone verification chambers, master research photography labs, gem appraisal software integration desks |
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