Sigma 14-24mm f/2.8 ART DG HSM lens for Canon EF

Quick Overview EF-Mount Lens/Full-Frame Format Aperture Range: f/2.8 to f/22 3 FLD, 3 SLD, and 3 Aspherical Elements Super Multi-Layer Coating Hyper Sonic AF Motor, Manual Override Weather-Sealed Brass Bayonet Mount Rounded 9-Blade Diaphragm Minimum Focus Distance: 10.2" Product Description An ultra-wide zoom lens with a constant f/2.8 aperture, the 14-24mm f/2.8 DG HSM Art Lens from Sigma is an outstanding option for architectural and landscape shooters with full-frame Canon EF cameras. A part of the esteemed Art-series of lenses, a sophisticated optical design is used that incorporates three FLD, three SLD, and three aspherical elements to help reduce chromatic aberrations and keep distortion under control. A Super Multi-Layer coating has also been applied to suppress lens flare and ghosting for accurate color fidelity and high contrast. Complementing the imaging capabilities, the lens sports a Hyper Sonic Motor to produce quick, smooth, and quiet autofocus performan