Operation concept
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Stereo microscope, Greenough design with 8:1 zoom range
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Main Component
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Lens Body, Stand and Illumination
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Lens Body
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Stemi 508 (binocular, incl. eyepieces 10×/23 Br. foc), Stemi 508 doc (phototube, incl. eyepieces 10×/23 Br. foc,)
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Stands
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Ergonomic design with adjustable in height and inclination for extended hours use
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Illumination
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Three Options are available, which are Dark-field (Y), Ring Type (W) and Combination of Both (Y+W) with standard daylight.
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Input Power Supply
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110 - 230 Volt AC, 60/50 Hz
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Optical Data of the Basic and Optional System
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Magnification range
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6.3× to 50x with basic version (10× eyepieces, no front optics) all magnifications from 2× to 250× (interchangeable optics)
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Maximum resolution
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225 Lp/mm basic version; up to 450 Lp/mm with interchangeable optics
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Maximum object field
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36 mm basic version; up to 122 mm using interchangeable
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Working distance
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92 mm basic version; up to 287 mm using interchangeable optics
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Stands
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Body
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Cast Iron and Stainless Steel body with Powder coating
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Focusing
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Manual coarse adjustment with Tilting arm
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Illumination
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Darkfield Illumination
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Halogen based Lighting to See diamond structures bright against a dark background
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Ring Illumination
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shadow-free bright LEDs in ring illuminator for stereo effect.
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Combine Lighting
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Combination of Halogen based Dark Field and bright LEDs in ring illuminator
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Overhead Day Light
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Look at colored objects and giving soft light to observe glary or shining objects
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Overhead Fluorescence
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Observe the fluorescence of the diamond in relief contrast
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Polarization Add-On
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Study birefringent objects, detect stress in Rough and Polished Diamonds
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