There are two types of polarisers, linear and circular. Their function is to reduce the reflection on non-metallic surfaces to reveal the original color and texture of an object. Polarisers can also help to enhance the saturation of colors beyond that of normal vision. They are the most effective filter to improve the tone of the sky and are not easily imitated by post-production.
EFFECT OF THE CINEMA POLARISERS
SPECIFICATIONS OF ND CINEMA FILTERS
NiSi’s Linear Polariser uses the same high-quality optical glass as the rest of the NiSi line. The optical glass, coupled with Nitto polarizing film, creates a filter with a 99.9% polarization rating. Each filter is precision ground and polished after the film is applied to ensure maximum sharpness. The edges of the filter are resin-sealed to keep moisture from entering the filter, improving durability.
99% Polarisation Rating
Cinema Rotating Polarisers
NiSi designed their new rotating circular polariser with the cinematographer in mind. The filter fits into a standard matte box tray and uses a 08 gear to turn a circular polariser in the assembly. This design makes it easy to find the polarization you want with the turn of a finger. The Rotating Circular Polariser can significantly improve efficiency on time-sensitive shoots, making it a powerful tool for videographers and cinematographers.
Weather isn’t a problem with the NiSi Rotating Circular Polariser. Its double-sided waterproof coating lets water slide right off leaving no trace on the filter. It also means that less dust and dirt will stick to the filter, making it easier to clean. The edge of the polariser is sealed to keep moisture from entering the filter.
The Rotating Enhanced CPL uses a unique nano-coating that amplifies the effect the polariser has on colors. It helps to boost color saturation and make skin tones more natural.