Marumi Digital High Grade filters have been specially designed with Digital Photography in mind. Each filter uses a specially developed ultra-low reflection coating to minimize internal reflection off the cameras built-in CCD and CMOS Sensors. Other anti-reflect features include a special slim frame with satin smooth finish and a black ink process on the glass edge to eliminate flare. Link follows to a short video which demonstrates the water repellant qualities of these filters: video clip\n\nThe Marumi DHG Super Circular Polarising Filters won the Advanced Photographer’s Best in Test Award in June 2011\n\nMarumi DHG Super Circular Polarising filters incorporate the same features as the Digital High Grade range plus 2 additional benefits:\n\n1. HARD PROTECTION – Guards lens surface from scratches even with heavy duty use.\n\n2. WATER AND OIL REPELLENT – Water and oil spots simply wipe off.