High Quality Optical Glass + Japan-made Polarized Film
With high quality optical glass and polarized film made in Japan, more than 15% of the light can penetrate compared to the regular C-POL. Polarizing ability can reach 99% and it can block UV-400nm below effectively.
Double side DMC Water-repellent and Dust-proof
Digital Multi-Coating (DMC) for both sides is not only durable enough to prevent scratches, dust and water, but also reduces the extra disruptive stray light which exists among normal polarized filters without coating. The coating has been inspected by a salt water immersion test which meets the standard requirement for the optical coating.
The 5mm-thin frame is the perfect choice for super wide angle lens to prevent vignetting. The frame meets ROSH standard which fit environment protection requirements.
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