
Cognep Gemology Microscope (COGNEP-81) with CORRA SZ81
COGNEP-81 Gemological Stereo Microscope with CORRA SZ81 (6.5X - 52X zoom), bright & dark field illumination and tweezer manipulation.
Bright & Dark Field
Iris diaphragm 2 mm - 41 mm
Binocular / Trinocular
45° inclined eye tube
Tweezer Manipulation
Smooth rotation of the gemstone
Dual Light Stand
Balanced multi-angle illumination
The COGNEP-81 Gemological Stereo Microscope is engineered for accurate and detailed examination of diamonds and gemstones. Designed for professional graders, jewellers and gemologists, it combines bright and dark field illumination, ergonomic handling and precision optics to reveal every detail of cut, colour and inclusions.
Key Features
- Binocular / Trinocular Viewing - 45° inclined eye tube for fatigue-free observation.
- Bright & Dark Field Illumination - adjustable iris diaphragm (2 mm - 41 mm).
- Advanced Manipulation - tweezer-based holding for smooth rotation and movement.
- Dual Light Stand - balanced illumination from multiple angles.
- High-Precision Optics - sharp three-dimensional stereo images.
| Lens | CORRA, Model SZ81 |
| Optical System | Greenough |
| Head | Binocular / Trinocular |
| Interpupillary Distance | 55 - 75 mm |
| Magnification | 0.65x - 5.2x |
| Zoom Range | 6.5x - 52x |
| Zoom Ratio | 1:8 |
| Eyepiece | WF 10x / 24mm, Dia 30mm, high eyepoint, diopter adjustable |
| Max Field of View | Ø42 mm |
| Working Distance | 118 mm |
| Bracket Holder | Inner Dia Ø76 mm |
| Focusing Range | 50 mm (coarse) |
| Warranty | 1 Year against manufacturing defects |
Shipping
Shipping is charged state-wise and shown at checkout. Orders ship through Shiprocket courier partners with secure packaging; tracking details are emailed once dispatched.
Payment
- Pay online via Razorpay — UPI, cards, net-banking, wallets.
- Cash on Delivery — pay 10% advance online, balance at delivery.
- Prices exclude GST @ 18%. A GST invoice is provided.
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