The Sodium Flare Polycarbonate lens is the sister lens to the Didymium Lenses. This is a lightweight lens very effective filter for sodium flare absorption in addition to providing excellent ultraviolet (UV) protection up to 390 nm. Not only is it very comfortable for viewing under high ambient light conditions, but it also allows a high Visible Light Transmission permitting you to see in any lighting situation.
This filter has a recommended use of lampworking on soft glass types, neon working, and any other industries that need a Sodium Flare filtration with our IR protection. This lens has very little IR absorption.