Promaster 58mm Digital UV Filter Digital Anti-Reflection Multi Coating Specially formulated to pass light reflected off of a digital cameras anti aliasing filter and silicon based CCD or CMOS sensor. Black Almite Frame and Black Rimmed Glass The black matte aluminum satin finish almite frame and black rimmed glass aid in reducing stray light and unwanted reflections. Low Profile Frame Ultra thin low profile frames prevent vignetting on super wide digital format lenses. Knurled Frame Edges Frames feature a knurled edge frame for easy attachment and removal.