Hi, I'm not entirely new to these forums but I only just signed up today.
I'm but a poor student who's interested but not very good at "this photography thing"
I have a 30D with my kit 18-55 and a 50/1.4 prime, and a 15-85 on its way to me from B&H's warehouse right now. For months I'd been contemplating buying a sigma 18-200 (hey, it's cheap!) but the 15-85, despite its price, won me over. I bought the 15-85 to use as an all-around lens to use on my backpacking trip in Europe this summer (5-6 weeks) as well as a 2-week vacay on the East Coast (of the US) immediately after that and was wondering about peoples' opinions on that one vacation lens that you guys love to use.
PS I read this other thread, on Europe travel lenses, and am now considering renting a 10-22mm as well. But for 8 weeks, it won't be cheap. Still considering it very strongly though...
Why don't you purchase a used Canon 10-22mm or Sigma 10-20mm? Resell the lens after your trip. You'd most likely save money this way.