NiSi’s Linear Polarizer uses the same high quality optical glass as the rest of the NiSi line. This, coupled with Nitto polarizer film, creates a filter with a 99.9% polarization rating. Eliminates Reflections and Glare Greater Color and Tonal Saturation reduces Haze in Landscapes True color without the warming cast that is seen with many other CPLs Cine Sealed Technology to seal the polarizing film Waterproof Coating Ultra High Definition 4mm thick