Edelsteinmikroskope mit LED Dunkelfeldbeleuchtung

GEMMASTER and trinocular digital camera adaption


GEMMASTER LED microscope base with LED illuminated darkfield for highest contrast and coolest working area stage ever. To grade diamonds and examine the internal world of coloured stones. To pin-point their inclusions and to match the colour in overhead daylight - all by innovative LED. The trinocular optical system is coming with 10x eyepieces for a total magnification of 10x – 40x.

The Set Includes:

  • GEMMASTER LED microscope base
  • Trinocular StereoZOOM optics
  • 10x eyepieces and eyeshields
  • Optical adapter for your digital SLR camera
  • Diffuse daylight LED overhead lamp
  • Daylight USB LED pin-pointer
  • Removable iris diaphragm
  • MAGNETIC CLICK stoneholder/ringholder
  • Adapter for tweezer operation

Trinocular StereoZOOM Optical System

Trinocular StereoZOOM optical system 10x – 40x attached to GEMMASTER LED Cool-Touch microscope base ready for DIGITAL photomicrography.

The affordable quality optical system is a trinocular type. Casted  metal housing case for rigid handling which makes it also perfect  for educational use.

LED Darkfield Illuminator

The darkfield illuminator light source is an innovative high contrast LED system with a lighting power equivalent to a 35 Watt incandescent halogen lamp. Lifetime of about 20,000 hours. It is flickerfree and has a non-noise digital power supply.

Despite the high LED lighting power the Cool-Touch® technology makes sure the microscope stage stays cool. The temperature at the stage never exceeds 25°C/77°F (room temperature).

Controls for electronic dimming of darkfield LED illumination without change of colour of light. Incandescents on the contrary get yellow/red tinted.

Circular reflector system illuminating authentic with highest contrast and mountable diffusor sheet. 

Darkfield Light Colours

First time in gem microscopy the choice of three colours of darkfield light as a unique feature: 4,500 Kelvin neutral daylight is standard, optional 5,000K daylight or 3,500K incandescent light colour are available .

Different gemstones may need different light:

  • Diamonds & coloured stones: neutral-white 4,500 Kelvin
  • Diamonds only: daylight 6,500 Kelvin
  • Traditional warm-white: 3,500 Kelvin

For comparison: a tungsten/incandescent lamp has about 3,000 Kelvin.


Change from darkfield to brightfield by swivelling baffle selector.

Digital Camera Adpater

For digital photomicrography the set also includes a special full-size image  optical adapter for your digital camera e.g. NIKON, CANON or OLYMPUS. Simply give us brand and type to choose the correct  camera adaption mount.


One USB port at each side of the stage. Diffuse LED daylight of 6,500Kelvin at semi-rigid goose- neck for showing or grading the colours of gems. High CRI performs natural sensations. Single high power LED of 6,500 Kelvin daylight colour at semi-rigid goose-neck to pin-point with focused light.

Good for other USB plug & play accessories as well. No data transmission!

Diffuse LED daylight overhead lamp
Single LED daylight pin-pointer

Ergonomic Features

Professional, ergonomic stage design for a comfortable wrist and finger position.

The base can be tilted up to 42° for the most comfortable user position with any optical system.
Adapter to use iris diaphragm as tweezers support.

The high darkfield spot makes quick microscopy by finger handling of mounted stones easy.

Innovative MAGNETIC CLICK stone holder system with magnetic socket at each side of the stage for right- or left-hand use. Extra ring holder included to be clamped on stoneholder.Precise focus adjustment by turning focus knobs. Focussing column designed and manufactured by LEICA.

Mounted Gemstone

Technical Specifications of Microscope Base

Vertical with trinocular optics: 700 mm (28”) height
Stage width x depth: 170 x 265 mm (7"x10”) height
Diameter of heavy base: 250 mm (10")

Base without optics 9,000g (20lbs), optical systems approx 1,000 – 2,000g (2.2 – 4.4lbs)

220 – 240V / 50 – 60 Hz, 100 – 120V / 50 – 60Hz by optional voltage converter 45 Watt. Power cord 3-wire grounded, 1,800 mm (6'), adaptors for CH, IT and GB sockets.
Degree/class of protection: IP 20/I. Electromagnetic compatibility following the EU norms.