Digital Multi-CoatedDigital multi-coated filters greatly reduce the appearance of lens flare and ghosting caused by reflections. Black Almite FrameFilters feature a black matte aluminum satin finish almite frame which reduces reflections.Black Rimmed GlassThese filters are equipped with black rimmed glass to reduce the chance of light reflecting off the edge.Low Profile FrameUltra thin filter frames to help avoid vignetting on super wide angle lenses are also designed to hold a lens cap.Knurling Edge FrameThese filters are equipped with a straight knurling edge for non-slip, easy attachment and removal.UV Protected CaseFilter cases are UV protected to further lengthen the life of filters.