Sigma 28-70mm F2.8 DG DN sample gallery

The Sigma 28-70mm F2.8 DG DN is a compact standard zoom for full-frame L- and E-mount bodies, designed from he beginning for mirrorless digital imaging. Potentially a highly attractive 'step-up' lens for mirrorless shooters, Sigma promises that image quality from this compact zoom will be comparable to the Art-series 24-70mm F2.8. We've had the new lens for a few days, and we've been shooting with it on the Panasonic S1R so you can get a first look at its image quality. Check out our initial sam...