The BG42 Multiple wavelength YAG, Alexandrite is a laser safety lens made of a light blue BG42 glass filter. It is cut and mounted into model 66 frame. The temple bars are fully adjustable, ratcheting up and down and telescoping for a perfect fit. The large lens design ensures maximum safety and visibility.
OD>7+ from 700-1200nm
VLT = 64%
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