Manufacturer: Sigma

Price: $400 at 1 seller

Sigma EX lens with 17-35mm zoom; Incorporates aspherical lens elements in the front, as well as rear lens groups; Equipped with a silent, responsive and fast Micro Hyper Sonic Motor (HSM); Incorporates internal focusing to prevent deterioration of the optical quality at close distances; Use with Canon SLRs that are compatible with AF lenses;