This new line-up of filters incorporates high-grade optical glass and a low profile frame, plus stain-and water-resistant coating. Each filter in the line, including UV, a protector and a circular polarizer, is multi-coated and features ultra-high light transmission. The line-up is manufactured to match the rigorous standards and optical capabilities of modern, high-resolution lenses, and come in a variety of diameters to fit nearly every lens in a photographer’s kit.