Hey guys. My XTi came with two kit lenses. The one that I'm mostly using is the 18 - 55mm. I love being able to go down to 18mm, but almost all the pictures I took had just slight blur, the edges weren't completely sharp. Would this be a result of a cheap lens? Should I buy a better lens? Also, how are widescreen - 16x9, pictures taken? Are they just done with cropping, or is there a type of lens that you would use?