Loupes and magnifiers
BelOMO Triplet Loupe Magnifiers or Bausch and Lomb Loupe Magnifiers are must have accessories hanging around the neck of every geologist and rockhound. 10x magnification lets you get up and personal with rocks and minerals. Magnifying loupes allow you to really view minerals and the mineral crystals making up rocks. This is an important tool in rock and mineral identification.
We are proud to offer the BelOMO Triplet Loupe Magnifiers. The BelOMO line of magnifiers offers some of the best loupe magnifiers available on the market but at a price of the cheap imitation loupes. This is simply a case of you get more than you paid for.
A 10x (10 power) triplet is the standard field tool. 10x magnification is just the right level of magnification to provide the best magnification, light capture, and depth of field.
Only use higher magnification, such as a 20x magnification, when you need to view very small objects. A 20x magnifier is good for viewing the edge of a razor, knife, or a phonographic needle.
Triplets are made of three (3) lenses. Every lens refracts (bends) the light passing through the glass. Different wavelengths (color) of light is bent a different amount. The combination of the 3 lenses bonded together to form one lens are engineered so that the light coming into the lens is corrected so that the light coming out of the lens is color correct, or the lens is achromatic correct. The triplet lens is also aplanatic meaning that the lens is corrected for spherical aberration making the image clear and in focus from the center to the edges.
Coddington lenses are two made of pieces of glass bonded together cut so as to minimize the image and color distortion but they are not achromatic or aplanatic.
Folding magnifiers, magnifiers made of of multiple lenses that fold in and out of a housing are handy for providing simple magnification at multiple levels but each lens and the air gap between each lens refracts the wavelengths a different amount. The image is distorted across the lens and the color you see are not the same as those of the object you're viewing.
Many of the cheap loupes available on the market are simply made of multiple magnifying lenses stacked on top of each other in a metal barrel. The result is gross image and color distortion, but at a very cheap price. Or maybe they're made of a single piece of thick glass. Cheap loupes can cost as much as a BelOMO Triplet Loupe Magnifier, but are pretty much worthless for usability. We do carry an inexpensive doublet loupe magnifier which does a decent job.
The Belarusian Optical and Mechanical Association (BelOMO) and Amateur Geologist, Inc are proud to introduce two new loupes to the BelOMO line of Loupe Magnifiers.
BelOMO 12x Triplet Loupe Magnifier:
The BelOMO 12x Triplet Loupe Magnifier has a viewing area of 0.38in (9mm). The 3 elements making up this achromatic triplet provide a bright and clear view. The 12x power magnification provides a nice level of magnification, outstanding depth of field (the area that appears in focus on an object having an irregular surface like a rock or mineral). The lens glass isn't as large, wide, as the famous BelOMO 10x Triplet Loupe Magnifier but there's still lots of light for a very bright view when you need or want just a little more magnification than the BelOMO 10x Triplet Loupe Magnifier.
BelOMO 15x Triplet Loupe Magnifier:
The BelOMO 15x Triplet Loupe Magnifier has a viewing area of 0.38in (9mm). The 3 elements making up this achromatic triplet provide a bright and clear view. The 15x power magnification provides a nice level of magnification, good depth of field (the area that appears in focus on an object having an irregular surface like a rock or mineral). The lens glass isn't as large, wide, as the famous BelOMO 10x Triplet Loupe Magnifier but there's still lots of light for a very bright view when you need or want just more magnification than the BelOMO 10x Triplet Loupe Magnifier but not as much magnification as the BelOMO 20x Quadruplet Magnifier.