>>35477311. dunno
2. Well, the 24mm or 28mm f/2.8
3. The 35mm f/2 "chrome nose" is rare and one of the very few that have a concave frontal lens. But I don't own one.
4. Avoid the 85mm. The 135mm f/2 is expensive but you can't go wrong with it. Don't buy too much gear and use the 50mm 1.4(which is awesome)