My current lenses are: Canon EF 50mm f/1.4 USM Canon EF-S 18-55mm F/3.5-5.6 II Canon EF 75-300mm F/4.0-5.6 III I want to replace my kit lens (EF-S 18-55mm) with something better and faster. Im also a brand freak, i like things to match up, so canon lenses only please. I eventually want a full range of focal lengths (who doesnt?) Right now I have a gap between 0 and 18mm (not a huge deal since 18 is pretty wide angle) and then a another gap between 55mm and 75mm... then a gap from 300mm to infinity. Any lenses that fill that gap? such as about 18-75mm lens? The kit lens is at F/5.6 i believe at 55mm and thats just way too slow... Any suggestions?