The B+W 55mm XS-Pro Clear MRC-Nano 007 is a simple clear filter designed for general protection for your lens. This optically clear filter does not affect the overall image quality while helping reduce dust scratches moisture and other elements from damaging your lens. The Multi-Resistant Coating (MRC) is both an anti-reflection coating as well as a protective surface. It helps to increase light transmission by reducing reflections scattered light and ghosting. Additionally it offers greater protection to the filter substrate and stays cleaner for longer than uncoated filters. This filter features the XS-Pro Digital mount which is