Features: Polarization rate up to 99.9% and transmittance up to 99.7%. Made with no compromise. Glass mounted with high pressure press technology. Original AGC Optical Glass from Japan. All Materials Used in this filter Meet the Requirements of European Union's standards of Environ -ment Protection-ROHS (Restrictions on Hazardous Substances). Light rays which are reflected by any surface can become polarized so polarizing filters are used to select which light rays enter your camera lens. CPL filters allow you to remove unwanted reflections from non-metallic surfaces such as water, glass etc. They also enable colors to become more saturated and appear clearer with better .
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