B+W 55mm XS-Pro Nano Kaesemann MRC Circular Polarizer
The “high-end” polarizing foils of the Kaesemann filters are extremely neutral in color, so you as the photographer as are able to retain perfect image quality and crispness. This filter has a 99.8% light transmission rating, is made with high quality German Schott glass and is mounted in a brass ring.
The Kaesemann filters have a higher efficiency than conventional polarizing foils and they are cemented between high-grade plano-parallel optical glass. The resulting sandwich is then precision-polished again to achieve highly accurate plano-parallel surfaces. This is very important for use with telephoto lens. The Kaesemann Circular Polarizers are then edge-sealed to protect the foil against humidity. Discriminating photographers and any image maker that has used one, all regard the B+W Kaesemann Polarizing Filter to be the very best of all polarizing filters.
B+W Kaesemann Circular Polarizers are well suited for applications that require the highest possible imaging quality "Optical Flatness", especially with high-speed telephoto and apochromatic lenses.
The nano coating is an outer layer of protection that comes standard with all XS-Pro Digital nano MRC filters. The nanotechnology based characteristic (lotus effect) produces a better beading effect with water, making the cleaning of this filter even simpler and faster than ever before. The MRC nano coating has an improved outer (8th) layer over regular MRC coatings.
This filter uses the B+W XS-Pro Digital mount which is especially suited for DSLRs with wide angle and zoom lenses. The XS-Pro Kaesemann Nano Mrc Circular Polarizer filter mount measures only 5mm in thickness and still has front threads for additional accessories such as lens caps or hoods. Industry leading B+W uses only the highest quality German Schott glass for outstanding results every time. All XS-Pro Digital mounts are made of brass and are matte black to prevent reflections.