I am rarely confused with photography, but right now, my brain is about to go ka BLOOEY. I am confused about focal lengths. On my camera, which is a P&S, though a "super-zoom" P&S. Its an Olympus SP-550 UZ, with 18x zoom. Well, for the focal length of this zoom, it says the farthest out it can zoom, 18x, is 84mm. And the lowest focal length is 4.7mm That is what is confusing me. I have been doing quite alot of research on buying a D-SLR, and I know that the normal kit lens, for an entry level SLR, is 18-55mm, which I've also read, is about 3x zoom. Going from 3x zoom at 55mm on an SLR, to 18x zoom at 84mm on a P&S, just...is not working out on my mind. Is the focal length numbers between a P&S and a SLR, different? From what I've known, they aren't, but now, I'm starting ot think...are they? I reeally need someone to clear this up with me xD. Also, what would a 55-200mm zoom be, compared to the zoom that is automatically on my camera?