This is what we regard as the Ferrari of Triplets in the industry and is highly recommended by The Loupe Store. Made in Belarus, you will find it hard to work with any other Triplet Loupe. Its touch and feel are addictive and its large Achromatic Triplet Lens is of a special, superior quality. Recommended by experts in many fields around the world this is the professionals choice. In the UK only available here through The Loupe Store.
Its magnification power and focal distance are probably the best adapted technical values you can find in a magnifier...
Belomo Loupe Technical Description
- 10x magnification
- Achromatic Triplet Lens
- 20mm/0.8" viewing field
- Focal distance 28 mm/1.1"
- Linear field of view 17 mm
- Coated in a matte black
(which prevents reflections)
- Overall dimensions 36 x 28 x 25 mm
- Light weight, 63 grams/0.14 lbs
- lanyard included in delivery
Various usage:
hallmarks, minerals, geology, plants, botanics, stamps, coins, jewelry, diamonds, watches, tool-inspection...
The Triplet lens-system combines the
aplanatic features of a distortion free image with the color correction of an
achromatic lens making this magnifier a highly important tool for viewing the true color of the examined object.
Beloma is a major opto-mechanical manufacturer situated in Belarus, former USSER. Since 1995 Beloma are in a joint venture with the German Optic maker Zeiss & they produce optical instruments with the ISO9001 certification.
They started off as a manufacturer for high resolution satellite cameras and other various space equipment and have evolved to being a a designer and manufacturer of laser, optoelectronic and optomechanical instruments. Some of their products include topographic and multispectral photographic equipment and devices, laser and optoelectronic sighting devices, camera lenses and microscopes including other medical equipment based on laser systems. The Quality speaks for itself.
You need to hold the loupe up closely to your eye. Then, bring the specimen you wish to inspect up into its focal-distance:
Chromatic aberration is caused by a lens having a different refractive index for different wavelengths of light (lens dispersion), meaning that different colors focus at different distances from the lens. Longitudinal and lateral chromatic aberration of a lens can be seen as "fringes" of color around the image.
Chromatic aberration of a single lens causes different wavelengths of light to have differing focal lengths.
An achromatic doublet has the same focal length for red and blue light.
As can be seen above, chromatic aberration can be minimized by using an Achromatic Lens or Achromat, in which special optical materials with differing dispersion are assembled together to form a compound lens.
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