As a rule I carry two 35mm SLR bodies, with 24mm and 50mm lenses. They cover most shots and I rarely feel lost for a perspective. However a 24 demands the photographer gets really close and even modest distances can make the subject appear far off and uninteresting. It's biggest advantage is DoF which is almost total, especially with fast film. Looking back I get more good shots with the wide but the few really good ones are on a 50mm.