Sigma
12-24mm f4.5-5.6 EX DG HSM II for EOS
Ultra wide zoom lens
Ultra wide angle zoom lens with a 122º super wide angle along diagonal axis. Four Special Low Dispersion glass elements reduce colour aberrations, and three aspherical lenses offer excellent correction for linear distortion. Boasts a Hyper Sonic Motor for quick autofocus with easy manual override. Inner focusing and non-rotating lens barrel. Minimum focusing distance of 28cm. Can be used on both full-frame and APS-C size sensors (equals 19-38mm in 35mm terms).