I'm looking to purchase a wide angle lens, and I've been reading countless articles on various lens for Canon. I've heard of vingetting, distortion and being soft -- the problem is, I am a sharpness fanatic. I've looked at the 10-22mm (recommended for a 350D) the EF 35mm F/2 and the 17-40L and I'm not completely sold on what fits the 1.6x crop body. I'm trying to find a good lens that will help me with indoor and outdoor, involving buildings. So details are very necessary... I read Fredmiranda.com quite frequently, but I don't know what's going to be suitable for my 350D. Any input, thoughts, recommendations welcomed.