Best UV Filter for Sigma 24-70mm f/2.8 Art
The Sigma 24-70mm f/2.8 Art is a masterpiece of optical engineering, but that massive 82mm front element is a magnet for fingerprints, dust, and accidental bumps. I’ve seen too many photographers pair this professional-grade glass with a cheap $10 filter, instantly destroying the sharpness they paid for. After years of testing optics in the field,…