NiSi Filter Swift System Circular Polarizer True Color Can be added on NiSi True Color VND 1-5 stops filter or on NiSi Swift system VND 5-9 stops, or on NiSi Swift system adapter ring. This filter have an exclusive polarizer coating film, which cuts out reflections from non metal surfaces and provides true color without the warming cast. The polarizer effect can easily controlled by rotating the front filter ring with or without the included silver lever. This feature not only reduses unwanted reflections, but provides a waterproof barrier on both sides of the filter, scratch resistance and added oil resistance. This allows easy and effective cleaning of dust, finger prints and water stains. Each filter is processed with precision control. The use of double-sided parallelization technology results in ultra high image definiton. NiSi True Color CPL utilises Cine Sealed technology wich blackens the edge of the CPL for added durability. This technology reduses the influence of temperature fluctuations and keeps out condensation. Nano coating, waterproof and antireflective coating. Available in 49, 52, 55, 58, 62, 67, 72, 77, 82 and 95mm size Unique features: Provides true color without the warming cast Designed to be used with NiSi Swift System, where you can easily use several filters at same time Eliminates reflections (from non-metallic surface) and glare Reduces haze in landscapes An optional rotating lever that can be removed Nano coated scratch resistance and added oil & water resistance.