Optics
The standard setup with a zoom range of 1:6.7 delivers 50X maximum visual magnification, with increased resolution power up to 240 line pairs (lp) per mm. Auxiliary objectives help to expand up to 480lp/mm.
GM Series
GM Series
The GM171 is a high-performance gemmology microscope Series with transmitted and incident illumination, optimized for professional gem and precious stone examination.
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Illumination
The microscope stand incorporates a 30W brightfield/darkfield illumination for transmitted light, while including a 7W fluorescent incident light source with gooseneck mount.
Mechanics
The tiltable microscope base (from 0° up to 45°) and rotatable by 360º for individual positioning guarantees fatigue-free working for hours. The adjustable tension of the z-drive allows an individual adjustment for precise and smooth focusing especially under high magnifications.
Accessories
A 10X micrometer eyepiece with diamond proportion analyzer is available for each GM microscope. Diverse gem holders and gemological tools like inclusion pointer, diffusor plate and immersion cells as well as specific polarization sets for the different models complete the range of accessories.