The Argon Alignment Filter is a laser safety lens made of a red AA Polycarbonate 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>2-3 from 480-532nm
OD>1.5+ from 470-555nm
Visible Light Transmision = 34%