More for the peepers
Do you happen to have the graph for the Sigma 8 -16mm or the 10 -20mm to compaire to the Nikon Lens.
Just a personal opinion here but does a chart realy tell you how good a lens is?
Well considering they are both crop format lenses and are wider than the Nikon that would be a bit pointless...However I can show a distortion chart for the Sigma 12-24mm, which is also a full frame lens and a much closer match focal length wise to the Nikon...As regards distortion, at 12mm it walks all over the Nikon at 14mm!: