Sigma 12-24mm f/4.5-5.6 AF II DG HSM Lens for Canon Digital SLRs. Sigma's 12-24mm lens contains three glass mold elements and one hybrid aspherical lens for advanced performance and compact and lightweight construction. Attach this lens to your Canon Digital SLR. So Purchase a Sigma 12-24mm f/4.5-5.6 AF II DG HSM Lens for Canon Digital SLRs for $575 + FREE Shipping!
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