The Hoya HD(0) UV filter blocks unwanted ultraviolet rays, reduces haze, and enhances clarity. Additionally, the UV filter serves as an excellent protective glass for the lens. The filter features ultra-clear, high-transparency UV-cut glass that has been chemically enhanced and is four times stronger than standard protective glass. The HD coating consists of 16 layers on both sides, along with an anti-reflective multi-coating. Furthermore, the filter is water and oil repellent, as well as scratch and dirt resistant. With its ultra-thin HD frame, the filter is compatible with wide-angle lenses. The frame has been mounted around the glass using a high-pressure pressing technique.