Best UV Filter for Sigma 24-70mm f/2.8 DG DN Art
The Sigma 24-70mm f/2.8 DG DN Art is a masterpiece of optical engineering, but its massive 82mm front element is a magnet for dust and fingerprints. After years of testing glass on high-resolution sensors, I’ve seen how a cheap filter can ruin the “Art” series’ legendary sharpness. You need a filter that offers protection without…