Sigma 24-70mm f/2.8 DG DN II Art Lens (Leica L) Full-Frame - f/2.8 to f/22, Fast & Lightweight Wide-to-Tele Zoom, HLA Autofocus, 6.7" Minimum Focusing Distance, Aperture Ring with Click & Lock Switches, FLD, SLD & Aspherical Elements, Nano Porous &...