Sigma 50-100mm F1.8 Art DC HSM Lens for Canon;

The Sigma 50-100mm f/1.8 DC HSM Art Lens for Canon is a premium mid telephoto zoom lens designed for APS-C sized sensors. Part of the Sigma Global Vision Art Line, the 50-100mm 1.8 is the second lens to feature a 1.8 aperture all the way through it focal length and factoring in the APS-C increase, the lens covers a highly useful range of 75-150mm. An enhanced and slimmer Hyper Sonic Motor (HSM) provide fast and accurate autofocus while 3 Premium FLD and 1 SLD Elements produce incredible image sharpness. Like all SGV lenses, each lens is hand crafted in our single factory in Aizu Japan, individually inspected before shipping and work with the Sigma USB Dock to update firmware and focus calibrate.FEATURES:Features three FLD (F Low Dispersion) glass elements, one SLD (Special Low Dispersion) glass element, and one high-refractive index, high-dispersion glass element to minimize aberrations.Redesigned and enhanced, the new Hyper Sonic Motor is 30% slimmer and provides fast and accurate AF.Highly durable polycarbonate diaphragm made with fluorine; blades feature carbon feather film offering exceptionally smooth operation even during continuous shootingInner focusing and zoom design offer versatile shooting optionsTripod socket for stable, comfortable operation.