Three element 10 power 21 mm jewelers loupe in a polished metal housing with a leather case.
This pocket magnifier features quality polished glass Triplet Lenses in a polished metal housing with a sturdy leather protective case.
The Triplet Lens design is an optical device consisting of three single lenses. The triplet design is the simplest to give the required number of degrees of freedom to allow the lens designer to overcome all Seidel aberrations. Aberration leads to blurring of the image produced by an image-forming optical system.
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