Ultra-thin frame design - Multi-coating applied to both sides of filter - Original Japanese polaroid film - Black-rimmed glass - Matte black superfine frosted finish mount - Mount features advanced knurling technology - NISI's PRO MC CPL offer exceptional value but does not compromise the quality of either construction or optics. - Suitable for landscape seascape etc. - Its ultra thin filter using special thin film gluing technology and the latest high-quality Japanese polaroid film.