Balder Technology has achieved the highest rating for optical quality and the best classification for “angular dependence.” The technology has earned a 1/1/1/1 rating (Optical Quality, Light Scattering, Homogeneity, and Angular Dependence.) This means it gives the welder the flexibility to see clearly at many different angles, quick adjustment and refocus time, and superior optical quality to allow you to do your most creative and productive work. Select the right ADF for your application