Revolutionary protection technology withstands extreme conditions, perfect for adventurous photographers and videographers Advanced optical quality with double-sided low reflection and Nano coating, offering a 99% transmittance rate UHD Technology with 8k Ultra High Definition capability guarantees no loss in image sharpness Ultra-slim 3.5mm Brass twill frame ensures no vignetting, even with wide-angle lenses as wide as 14mm Waterproof, oil-proof, and easy-to-clean surface, ideal for both outdoor and studio photography State-of-the-art UV protection filters out harmful ultraviolet light below 395nm, enhancing image quality