Sigma's earlier 24-70mm f/2.8 for Nikon — the EX DG version before the Art line redesign.
The Sigma 24-70mm f/2.8 EX DG is Sigma's professional standard zoom from the EX class for Nikon F full-frame cameras. Nikon F mount.
24-70mm focal length. f/2.8 constant maximum aperture. EX class. DG = full-frame. Nikon F mount.
The Sigma 24-70mm f/2.8 EX DG is the earlier EX-class version of Sigma's pro standard zoom — constant f/2.8 with EX quality optics. No HSM (or early HSM) autofocus. EX designation indicates above-average Sigma build and optical quality. The later 24-70mm f/2.8 DG OS HSM Art is the Art-line successor.
On the used market the Sigma 24-70mm f/2.8 EX DG is a capable professional zoom. Condition checks: constant f/2.8, AF. Nikon F mount.