110mm Stereo Zoom Gemmology Microscope 6.5–55x, Trinocular 45° Head, LED Toplight/Halogen Transmitted - Euromex

Precision gem inspection benefits from a wide magnification range and a stable, long working distance, ensuring detailed assessment without frequent re-positioning. Combine the 6.5–55× zoom capability with dimmable top illumination and a powerful transmitted light source for consistent, reproducible results; order the NexiusZoom EVO Gemmologie NZ.1703-GEML directly via Metav Werkzeuge or ask our consultants if needed.

NexiusZoom EVO Gemmologie NZ.1703-GEML — Stereomicroscope with 6.5–55× zoom and trinocular 45° head (Euromex)

NexiusZoom EVO Gemmologie NZ.1703-GEML is a dedicated gemmology stereomicroscope designed for detailed gemstone inspection and documentation with a tilt-capable stand and flexible imaging options

• Wide magnification range 6.5–55×
• 110 mm working distance for large samples
• Combined LED top and 30 W halogen base light
• Trinocular 45° head with dioptre ±5 adjustment

Optical precision for reliable gem assessment

The instrument delivers a wide magnification span of 6.5–55×, supported by a zoom objective 0.65–5.5× and a zoom ratio of 1:8.4, allowing fine gradation between viewing powers and stable intermediate stops thanks to click-stops. Optics are treated with an antifungal finish and anti-reflection coatings, which prolong service life and preserve image contrast when inspecting inclusions or cut quality. The trinocular 45° head and dioptre ±5 adjustment ensure comfortable binocular use while maintaining image fidelity; pupil distance is adjustable from 54–75 mm, accommodating a range of operators. Coarse focusing with adjustable friction gives steady vertical control, reducing the need for repeated refocusing during close inspection.

Consistent illumination and an ergonomic working distance

A controlled lighting environment is achieved by the combination of a dimmable 1 W LED top light and a 30 W halogen transmitted unit, which includes a darkfield iris diaphragm for contrast enhancement on faceted and polished surfaces. The generous 110 mm working distance facilitates handling of settings, tweezers and tweaked mounts without shadowing, while the gemmology stand’s backward tilt from 0–45° improves ergonomic access and sightlines for prolonged sessions. These features deliver repeatable visual conditions for grading, inclusion analysis and colour assessment, reducing operator fatigue and improving throughput in routine inspection tasks.

Flexible imaging and modular configuration for documentation

The system supports photographic documentation via a dedicated photo port, with accessory codes indicating camera compatibility and adapter requirements; a specified sensor size is necessary for correct attachment. Exchangeable heads and configurable options (NZ.5302, NZ.5303, NZ.5312, NZ.5313) enable adaptation to laboratory workflows, and SLR adapters (AE.5040, AE.5020) are available where bayonet type must be checked. Included items such as the specimen clamp and the darkfield transmitted unit with iris diaphragm streamline initial setup; accessory notes clarify that certain configurations must not be combined (for example NZ.9525 with auxiliary lenses), so camera integration should be planned according to the indicated specifications.

Application suitability, durability and quality assurance

Engineered for gemmology and detailed jewellery inspection, the instrument combines optical reliability with practical handling: antifungal coatings protect precision glass in humid environments, click-stops on the zoom ensure repeatable magnification steps and the robust focus mechanism provides steady vertical movement for high-magnification examination. This balance of performance and serviceable design supports tasks from routine sorting to detailed inclusion analysis. The modular accessory ecosystem also allows gradual upgrades, supporting longer equipment life and adapting to evolving documentation needs while maintaining consistent measurement conditions and visual judgement.

For precise gemmological work and configuration advice on the NexiusZoom EVO Gemmologie NZ.1703-GEML, contact Metav Werkzeuge to discuss accessory compatibility and delivery from our Emmerich warehouse

Technical data

• Article number: NZ.1703-GEML
• SKU: NZ.1703-GEML
• Product type: Stereomicroscope
• Model series: NexiusZoom EVO Gemmologie
• Manufacturer: Euromex

Core specifications

• Magnification: 6.5–55×
• Working distance: 110 mm
• Zoom objective: 0.65–5.5×
• Zoom ratio: 1:8.4
• Eyepieces: HWF 10×/23 mm
• Illumination: Toplight 1 W LED (dimmable); Transmitted light 30 W halogen
• Dioptre adjustment: ±5 (both sides)
• Pupil distance: 54–75 mm
• Stand tilt: backwards 0–45°

Special features & accessories

• Trinocular head 45°
• Coarse focus with adjustable friction
• Optics with antifungal treatment and anti-reflection coating
• Click-stops on zoom
• Included: specimen clamp; darkfield transmitted unit with iris diaphragm; mains lead; dust cover; spare fuse; manual
• Accessory notes and codes: NZ.5302, NZ.5303, NZ.9525 (not with auxiliary lenses), NZ.9850 (photo port and sensor size required), AE.5040 (SLR adapter; check bayonet), NZ.5312, NZ.5313, AE.5020

FAQ

What magnification range does the instrument cover?
The NexiusZoom EVO Gemmologie NZ.1703-GEML offers a magnification range of 6.5–55×, achieved via a 0.65–5.5× zoom objective and click-stops for repeatable settings.

Is the stereomicroscope suitable for photographic documentation?
Yes; the NZ.1703-GEML supports photography via a photo port, but camera attachment requires the specified sensor size and, in many cases, an SLR adapter (AE.5040 or AE.5020); check the indicated accessory codes for compatibility.

Can large or mounted gemstones be inspected without re-positioning?
The 110 mm working distance provides room for mounted stones, tweezers and lighting, allowing inspection with minimal repositioning while preserving optical quality.

How does the instrument handle contrast enhancement for inclusions?
Contrast enhancement is achieved through the darkfield transmitted unit with an iris diaphragm and the combined use of dimmable top LED and 30 W halogen transmitted light for controlled illumination conditions.

What accessories are included with delivery?
Delivery includes a specimen clamp, darkfield transmitted unit with iris diaphragm, mains lead, dust cover, spare fuse and an instruction manual; additional configurable heads and adapters are listed under accessory codes.

Manufacturer: Euromex; Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com