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 topcoat is water repellent, stain and scratch resistant, and easy to clean if stains or fingerprints get on the surface. Circular polarizing filters allow photographers to achieve creative, in-camera effects that are not possible once the image is created. A polarizing filter filters unwanted reflections from non-metallic surfaces such as water or glass, as well as light that reflects moisture and contaminants in the atmosphere. By rotating the ultra-smooth filter, you can select just the right amount of filtering needed for the creative effect. The new Fusion Antistatic Next series of professional antistatic filters are made in Japan from hand-selected silicates that are carefully melted and blended to create a high-performance optical glass. 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 achieves very high light transmission rates. This means that beyond its polarizing effect, the filter has virtually no effect on the color balance, contrast or clarity of the final image.