Made from Schott glass, the B+W 55mm Kaesemann High Transmission Circular Polarizer MRC Filter ensures increased optical clarity and color fidelity in images. The filter reduces glares and reflections from non-metallic surfaces and offers a better contrast and saturation. It does so by filtering out polarized light with the help of Kaesemann HTC foils, which allow 99.5% light transmission. These foils are cemented between plano-parallel optical glass surfaces and are precision-polished to achieve a highly accurate plano-parallel surface. The filter also includes a multi-resistant coating that protects it from dust and humidity.