Our X2 CPL features critically sharp AGC glass made in Japan, the most color neutral performance of any circular polarizer available and our all-new traction frame design. Critically sharp AGC glass made in Japan State-of-the-art 8-layer multi-resistant coating eliminates flaring and ghosting Made in the USA, our polarizing film has the most color neutral results of any CPL filter nanotec® nano coating layers repel dust, water and other elements making it faster to clean Unique ultra-slim traction frame design with edge traction with the smoothest rotation of any CPL 25 Year Ironclad Guarantee with US-based support EDGE TRACTION Traditional standard flat black polarizers have smooth surfaces and are often difficult to rotate, so when we set out to design a circular polarizer we wanted to make it as easy as possible to rotate the front ring, without having excess play. We found that by CNC machining traction directly into the sides of the filter frame photographers could easily get filters on and off securely. But with polarizers the primary problem is the ease of rotation. To make rotation as effortless as possible we experimented with many different prototypes, and the pro