HOYA engineers have developed a new ANTISTATIC coating that acts like a force field around the filter to repel dust. In addition, the hardened anti-static top coat is water repellent, stain and scratch resistant, and is easy to clean if stains or fingerprints get on the surface. The UV filter cuts unwanted ultraviolet rays, reducing haze and increasing clarity. HOYA then applies extreme care and precision to apply the enhanced 18-layer Super Multi-Coating (both sides) formula, which greatly reduces or eliminates reflections on the glass surface and results in a clear high transmission rate. The filters feature a lightweight, one-piece, low-profile aluminum frame to hold the glass. This one-piece design allows the filter to maintain perfect parallel alignment to the sensor plane for maximum sharpness, while the flat shape eliminates vignetting when used with ultra-wide angle lenses.