Hi all. I'm currently using the 18-55mm lens for my 40d kit. What I'm interested to know is what does the figures (e.g 18-55mm) stands for on the lenses (If the number is bigger means it can zoom further is it?) and what is the ideal upgrade of lens for a starter like me. (Apparently, I feel that the lens isn't helping me out much cause the image ends up too far away) And also, are those lens with low figures (22mm, 18mm etc etc) wide angled lens? Thanks for clarifying.