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 & CMOS Sensors. Other anti-reflect features include a special slim frame with satin smooth finish & a black ink process on the glass edge to eliminate flare. Colourless lens protection filter with special ultra-low reflection coating designed to minimize flare & ghosting on CCD & CMOS sensors. The thin mount is designed to prevent Vignetting when used with wide angle digital lenses.