Featuring the new generation of HTC polarizing filters, the B+W 62mm Kaesemann High Transmission Circular Polarizer MRC-Nano Filter helps reduce reflections and glares. The polarizing foils have a higher translucency with a 99.5% light transmission. The foils have a higher efficiency than conventional foils, and they are placed between high-grade, plano-parallel optical glass. They are then precision-polished to achieve an extremely accurate plano-parallel surface, which is essential for photography using telephoto lenses. The foils are sealed with multi-resistant and nano coating to make cleaning the filter simpler and faster. The 62mm filter features brass threading, which does not bind to the aluminum housing of the lens and prevents jamming. The brass threads also helps to increase the durability of the filter.