Hoya 58mm PRO1 Four Point Cross Screen Glass Filter (4X) DMC: Digital Multi-Coated filters greatly reduce the appearance of lens flare and ghosting caused by reflections Effect becomes more pronounced with larger and brighter light sources. BAF: Black Almite Frame. a black matte aluminum satin finish almite frame which reduces reflections BRG: Black Rimmed Glass. reduces the chance of light reflecting off the edge LPF: Low Profile Frame. Ultra Thin Frames to help avoid vignetting on super wide angle lenses. These frames are do hold a lens cap