UV Protective Filter for Sigma 18-35mm f/1.8 Art DC HSM K — Optically Neutral UV Absorber (1x / +0 stop)

Made to fit the Sigma 18-35mm f/1.8 Art DC HSM K, this UV filter absorbs ultraviolet rays that can cause hazy, low-contrast images—especially at high altitudes, by the ocean, or in snowy landscapes. It minimizes the bluish cast of daylight so your outdoor photos show more natural tones and improved clarity. The glass is optically neutral with a 1x filter factor (+0 stop), so it does not change exposure, contrast, or color balance; images retain full sharpness and accurate color while gaining UV reduction. Designed for continuous use on the lens, the filter also provides everyday protection from scratches, dust, dirt, water spots, fingerprints and accidental contact, and helps shield the front element from bumps, drops or abrasions.