I had the 10-20 sigma and it was a phenomenal lens on my 40D. I sold both to fund my 5D purchase (even trade) but when I was doing ultrawide stuff I was super happy with it. Even made some nice sized prints and I thought it was much sharper than the Canon 17-40L
[ QUOTE ] I've known people who spent well over an hour commuting each way to work every day and were refilling their gas tanks more than once a week. If I want to see my family, just up the interstate in the next major city, I've got to drive 112 miles to get there - there's no other option. Go up and back for a weekend…