High-performance UV filter made from Schott B270 glass for sharp, clear images Robust protection against dust, rain, fingerprints, and scratches High-quality Aviation Aluminum ring with uniform surface gloss and 3.1mm ultra-thin frame design Knurled frame for easy grip and attachment without causing vignetting 24-layer coating to reduce reflection and increase light transmittance Waterproof and oil-proof dual protection design for handling harsh environments Enhances image quality and clarity, adding brilliance to photography