Sigma has just officially announced the new SIGMA 28-105mm F2.8 DG DN | Art lens. It is a surprisingly compact, full-frame, wide-angle to telephoto zoom lens with a fast constant aperture, available for Sony E-mount and L-Mount. This lens covers… Read moreSigma 28-105mm F2.8 DG DN Art Lens Announced, Priced $1,499, Available for Pre-Order