E-Mount Lens/Full-Frame Format Aperture Range: f/1.8 to f/16. Three FLD Elements, Four SLD Elements Four Aspherical Elements. Super Multi-Layer Coating Hyper Sonic AF Motor, Manual Override. Rounded 9-Blade Diaphragm TSC Material, Brass Bayonet Mount. BUNDLE INCLUDES: Sigma 14mm f/1.8 DG HSM Art Lens for Sony E Padded Backpack Cleaning Kit