Marumi 49mm 49 Super DHG MC CPL PL.D Slim Thin Filter Japan Newly developed ultra-low reflection coating increases light transmission. Lens' outer rim is blackened to minimize internal reflection. Satin smooth, ultra thin, matte-black metal filter frame further minimizes refection The DHG Circular PL(D) maximizes the lens' performance and represents contrasty pictures Suitable also for wide-angle lenses. Front lens cap can be attached.