The Sigma WR UV Filter in an 86mm diameter is designed to provide constant protection for your lens while improving image clarity. By filtering out ultraviolet light, it prevents the bluish cast that often appears in bright, sunny conditions and minimizes flare and ghosting for a cleaner shot. Crafted in Japan, this filter features a specialized WR coating that repels water and oil, making it much easier to wipe away fingerprints or raindrops during an outdoor shoot. It also incorporates anti-static properties to keep dust from adhering to the glass surface. Because it reflects only 0.24% of visible light, you can leave it on your lens daily as a shield against scratches without worrying about noticeable loss in light transmission.