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Motic GM-171 Trinocular Stereo Microscope for Gemological Applications
Product Description
The Motic GM-171 is a trinocular stereo microscope designed specifically for gemological and precious mineral analysis. Key technical features include:
- Optical system: Greenough design
- Observation tube: Binocular with 45º inclination
- Interpupillary distance: 52–75 mm
- Diopter adjustment: ±5 diopters on both eyepieces
- Eyepieces: Widefield WF10X/23 mm
- Objective system: Zoom with a 6.7:1 ratio
- Objectives magnification: 0.75X to 5X, providing 7.5X to 50X total magnification
- Working distance: 110 mm
- Stand: 360º rotary base with a 45º tilting arm (column/arm height 268 mm)
- Diaphragm: Iris diaphragm with adjustable aperture ranging from Ø41 mm to Ø2 mm
- Focus mechanism: Coarse focusing with tension adjustment, 125 mm focusing stroke
- Illumination:
- Incident: 7W fluorescent with adjustable gooseneck
- Transmitted: Quartz halogen 6V/30W with intensity control
- Includes darkfield illuminator
- Power supply: 100–240 V (CE certified) with internal transformer
- Accessories included: Dust cover, stainless steel wire stone holder, aluminum carrying case
- Dimensions: 391 x 236 x 505 mm (L x W x H)
- Base dimensions: 306 x 236 mm
- Net weight: 8.2 kg
The combination of brightfield and darkfield illumination along with a wide zoom range makes this instrument suited to detailed gemological inspections.
Item Stats
Product details
| Optical system | Greenough |
| Observation tube | Binocular head |
| Inclination | 45º inclined |
| Interpupillary distance | 52-75mm |
| Diopter adjustment | On both eyepieces, +/- 5 diopter |
| Eyepieces | Widefield WF10X/23mm |
| Objectives system | Zoom, ratio 6.7:1 |
| Objectives | 0.75X~5X |
| Working distance | 110mm |
| Stand type | 360º rotary base |
| Diaphragm | Iris diaphragm, adjustable aperture Ø41mm - Ø2mm |
| Head holder | For Ø76mm head |
| Focus mechanism | Coarse focusing system with tension adjustment |
| Focusing stroke | 125mm |
| Incident illumination | Fluorescent 7W with Gooseneck adjustable |
| Transmitted illumination | Quartz Halogen 6V/30W with intensity control |
| Illumination features | Darkfield illuminator |
| Transformer | Internal |
| Power supply | 100-240V (CE) |
| Accessories included | Dust cover, stainless steel wire stone holder, aluminium carrying case |
| Dimensions | LxWxH 391x236x505mm |
| Base | 306x236mm |
| Column/Arm Height | 268mm, 45º tilting arm |
| Net weight | 8.2kg |
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