Sigma has on display the new Sigma DP2 Merrill, DP1 Merrill, SD1 Merrill, the new 180mm Macro f/2.8 lens, and a number of other lenses. Unfortunately the DP2 Merrill and DP1 Merrill were non-working samples.
Sigma DP2 Merrill Hands-On Photos of Equipment
Sigma 180mm macro f/2.8
Sigma APO Macro 180mm f/2.8 EX DG OS HSM Hands-On Photos of Equipment