Peter, Since I use available light only I use f2.8 a lot. f8 for me is not that important, almost all lenses are pretty ok by then.
I am surprised to see how sharp the Sigma is :) But sharpness is only part of the equation, I am convinved about this after getting the 80-200. The contrast and color rendition is very very important. Thanks for going thru the effort! > FWIW, below is a list of the Photodo tests for the Canon > zooms v. Sigma > zooms. Compare for yourself and see what may be best. Check > out F4 which is > a stop down for the F2.8 lenses and note how well they do. > Also, interesting > note that at 200mm the Sigma is best of the lot wide open. > Also at 135mm at > F8, a setting ideal for portrait sittings, the Sigma is every > bit the equal > (or better) than the others. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
