The NiSi Cinema True Color Rotating Circular Polarizing Filter is an all-new rotating circular polarizing filter designed to fit the NiSi C5 Matte Box. The polarizing filter reduces reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. This results in a noticeable reduction of glare and reflections from non-metallic surfaces and increased saturation of skies and foliage. The True Color PL removes the warm tone seen with other brands of polarizing filters and provides an accurate, true color representation of the scene. The amount of polarization is easily controlled by rotating the gear on the top of the filter or by mounting a separately available motor using the 15mm rod holder to control the amount of polarization wirelessly.