The biconvexe lens is scratch-resistant and produces a very sharp and extremely high contrast image. Schweizer uses a UV absorbent optical crown as used with prescription lenses (refractive index n=1.52). The housing is made of light-plastic with an air-circulation hole. All materials used in the fabrication are of the highest quality.
Loupe Headband - fits all sizes
From June 2008. Only available Here!
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