Import Optical GlassCrafted from premium Japanese Agc optical glass with an astonishing 28 multi-layer coatings, this Nd filter reduces reflections and glare, ensuring superior image quality.Putter Design for PrecisionThe frame is ingeniously designed as a putter, allowing you to accurately adjust the stop. Video shooting users can effortlessly adjust the stop with auxiliary tools. Every stop from Nd2 to Nd400 is conveniently marked on the frame, providing smooth 360-degree rotation for multi-scene applications.Waterproof and Scratch ResistantEquipped with multi-layer hydrophobic, oil-proof, and scratch-resistant coatings on both sides, the KandF Concept ND filter is fully protected and perfect for adventurous use.No VignettingDesigned for ultra-wide-angle applications, the ultra-slim frame measures only 7.4mm, ensuring no vignettes even at a 16mm focal length.Note: This ND filter suits all 82mm lenses.