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. Colourless lens protection filter with special ultra-low reflection coating designed to minimize flare and ghosting on CCD and cmOS sensors. The thin mount is designed to prevent vignetting when used with wide angle digital lenses.