Sigma 24-70mm F2.8 DG OS HSM IF ART Lens $879 (save $420) and it includes the Sigma lens dock FREE. Available in Canon, Nikon or Sigma mounts. Click the photo to go to the item on Adorama. Remember - TMIP posts information that it is sent and may get a small bonus if you make a purchase through this link. TMIP is not responsible for the content that is sent by outside vendors.