Before buying a Triplet magnifier, make sure you can see the whole lens. Three lens components should be visible (pic 2). Never buy a car without seeing the motor.
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
- 8x, 10x, 12x, 15x or 20x magnification
- lens diameter: Ø5mm, Ø15mm, Ø20mm, Ø23mm
- Achromatic Triplet Lens (coated) (Pic. 3)
- See above for different Specifications (Spec)
- Coated in a matte black
(which prevents reflections)
- Overall dimensions 36 x 28 x 25 mm
- Light weight, approx. 63 grams/0.14 lbs
- lanyard included in delivery for each loupe
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.
Please take note that 20x magnification is not the only magnification you should own. The magnification is too strong for daily use. Please click here for details on 20x.
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.