Sigma 28mm f1.8, Sigma 50mm f2.8 macro, Sigma 24-70mm f4-5.6, Sigma 180mm f5.6 APO macro. and Sigma 300mm f4 APO macro.
These were great lenses, and I still miss acouple of them, but I do think my current Canon lenses beat a couple of them for sharpness.