If you are ready to step up to a wide angle pro lens, this is the best value lens available. The 17-40 has excellent center sharpness, and does very well in the corners too. It is an outstanding lens for landscapes, group shots, or as an ultra wide on a full frame camera. This lens works with all modern Canon digital cameras. This specific lens in in excellent used condition with no issues to note.
Caro Pickup or $20 shipped/insured anywhere in the US