Neone tried the sigma 24-70 2.8 for Canon?
Or is the Canon that much better used prices are about 40-50% that of the canon 24-70 >.<
I use a 40D and have the 17-40 F4L
Also interested in this Sigma 30mm F1.4
http://vancouver.en.craigslist.ca/va...590419583.html