Sorry if these are very basic questions but I'm a basic kind of guy! I have a 350D and I am itching to get myself a wide angle lens. Currently I'm not too hot on the technical side of things and am just going for shots I like and hoping to pick the technical stuff up as and when I need to. so, the questions are, firstly, what technically defines a lens as being a wide angle lens? and secondly, what is a good lens of the 350D taking the 1.6 crop into account? Any answers gratefully recieved!