Interchangeable lenses for your DXT OTGLumalens® Blue Ion Lumalens® technology provides optimised colour and glare protection through an ionised lens coating. The hard coating is scratch resistant and repels dirt, dust, oil and water.Transmittance of visible light: 23 % Lumalens® Flash Blue Lumalens® technology provides optimised colour and glare protection through an ionised lens coating. The hard coating is scratch resistant and repels dirt, dust, oil and water.Transmittance of visible light: 48 % Lumalens® Green Ion Lumalens® technology provides optimised colour and glare protection through an ionised lens coating. The hard coating is scratch resistant and repels dirt, dust, oil and water.Transmittance of visible light: 23 % Lumalens® Silver Ion Lumalens® technology provides optimised colour and glare protection through an ionised lens coating. The hard coating is scratch resistant and repels dirt, dust, oil and water.Transmittance of visible light: 23 %