This "still life" was taken as part of a series to test my three lenses at different apertures. The Canon 300mm zoom at f16 takes the best shots, followed closely by the Canon 80mm zoom at f16. The Sigma lens takes excellent photos but at a smidge lower quality. I was surprised to see that f16 was very noticeably better than f8 with all lenses. Lindseth -- 10/2005