Adopt High quality aviation aluminum.
Slim picture frame design super waterproof
Prevent of oil pollution advanced laser engraving technology top-transmittance, 99.8% light transmittance
Double Thread, 18-Layer super anti-reflection multi-coated with EVERCLEAR 5
High coating Technology to withstand almost any conditions. With only 3.2mm thickness and transmission rate up to 99.8%.
This UV might be the thinnest and the best in the world. Made with no compromise. Nearly zero distortion when light go through this HD filter. Original SCHOTT Glass from Germany, Compare B+W. All Materials Used in this filter