Sigma 20mm F2 DG DN Review

The Sigma 20mm F2 DG DN is a fast, compact wide-angle prime lens for Sony Alpha mirrorless cameras. Boasting impeccable build quality, a vintage feel and modern optics, is this new lens worth the £649 / $699 asking price? Read our expert review of the Sigma 20mm F2 for Sony with full-size sample photos to find out...