Small Pocket chrome-plated Triplet Jewelry Loupe Magnification 20X
The triplet-type loupe importance:
Correction for visual distortion is the triplet-type creates what we call flatness of field.If we were to look at a gem with a magnifier that was not a triplet-type,any flaw seen at an outer edge of the magnifying lens would be distorted,more or less so depending on how close the flaw is to the edge of viewing lens.
Specifications:
Jewelry loupe With Magnification of 20X Triplet and Size of Lens with 21mm
Technical Parameter | Magnification | 20X |
Size of lens | 21mm | |
Material | Glass | |
Body case | Chrome-plated outer casing | |
type | Triplet | |
Color | chromatic aberration | |
Distortion | spherical aberration |
Applications: Gemological Laboratory, Gemology school, Jewelry industrial