Sigma 70-200 - The ongoing saga
I just had my D2Xs in for a sensor clean/AF & exposure check with Nikon and asked them to compare my Sigma against my Nikon 80-200. They reported that the Nikon is clearly superior to the Sigma and told me they were suprised how bad the Sigma was. It is unacceptable at f2.8-4.0 and only equals the Nikon at f8.
I'm sending it back to Japan as well. I can't possibly sell it as it is.