I have a 35mm f2, and while the 55mm filter ring is annoying since virtually every other lens uses a 49mm, it's a very nice lens. For most OM zuikos faster = better quality, given a few fairly rare exceptions. The f2s were sort of the zuiko professional line from what i've read. Lower cost wides would be the 24 f2.8, 28 f3.5 and f2.8, and 35 f2.8. Most of the other options are much more expensive, starting with the 35 f2, then jumping up from there to the 40 f2, 28 f2 and 24 f2. There's a few zoom lenses, of which i haven't heard good things except for the 35-80 f2.8, and it's pretty rare and expensive.