Sigma 12-24mm f/4 DG HSM Art Lens for Canon EF - 205954

Short Description EF-Mount Lens/Full-Frame Format Aperture Range: f/4 to 22 FLD and Aspherical Elements Super Multi-Layer Coating Hyper Sonic AF Motor, Manual Override Rounded 9-Blade Diaphragm TSC Material, Brass Bayonet Mount Dust- and Splash-Proof Construction Compatible with Sigma USB Dock   In The Box Sigma 12-24mm f/4 DG HSM Art Lens for Canon EF Lens Case Limited 1-Year Seller Warranty   Long Description Sigma's third generation 12-24mm f/4 DG HSM Art Lens, available here with a Canon EF mount, refines their ultra-wide arena and delivers an image with little distortion and with a high resolution for crisp photos with a modern full-frame digital image sensor. A member of Sigma's Art series, it boasts high image quality which is helped out by the use of FLD and aspherical elements, including an 80mm large-diameter molded glasses aspherical lens, that minimizes aberrations and distortion. Furthermore, it uses a Super Multi-Layer coating that minimi