High-quality UV filter designed for superior lens protection against dust, rain, fingerprints, and scratches Crafted from Schott B270 glass with an impressive light transmission rate of up to 99.4% High-quality Aviation Aluminum ring with a uniform surface gloss and regular threads for enhanced durability 3.1mm ultra-thin frame design with knurling for easy grip and prevention of vignetting Dual-sided coating with 24 layers to reduce reflection and increase light transmittance Double-sided waterproof and oil-proof for enhanced resilience in harsh environments