Sigma 20mm f/1.4 Art Lens for Canon EF w/Digital Pro Sling SLR Backpack & 32 GB SD Card Bundle BUNDLE INCLUDES: Sigma Art 20mm f/1.4 DG HSM Lens, Camera Backpack, Sigma USB Dock for Canon Lenses, Monopod, SanDisk Ultra 32GB SD Card, USB 2.0 Card Reader, Top Brand 5 Piece Digital Camera Accessory Kit, Camera Strap, Camera Charger, Battery EF Mount Lens/Full-Frame Format; Aperture Range: f/1.4 to f/16 Two Aspherical Elements; Two FLD Elements and Five SLD Elements Super Multi-Layer Coating Hyper Sonic AF Motor, Manual Override