Sirui 58mm Nano CPL PRO MRC Circular Polarizer Filter
1. Extremely thin, only 5.0mm. No vignetting even with wide-angle lenses.
2. Finest AR coating process with nearly 100% polarization.
3. Neutral color transmission for accurate color reproduction and UV reduction.
4. Lightweight, high performance “scientific grade” aluminum filter ring provides high strength, corrosion resistance, stability and critical filter alignment. Protective coatings on each side of the glass for superior performance.
5. High performance professional Brass filter ring provides high strength, corrosion resistance, superior stability and critical filter alignment. L41 coatings on each side of the glass (waterproof, oil-resistant, scratch-resistant, anti-reflective and anti-static) for easy cleaning and superior performance.