[dougjgreen]

Nope, the best you can do is use one of the numerous fast, sharp legacy optics out there. I have a Nikkor 85mm f2 that's so small it makes a great street shooting lens. But it's also a bit long at 170mm equivalent on 4/3 There's a bit of a gap between some older fast 55-58mm lenses (I use a Pentax 55mm f1.8, and Konica made an excellent 57mm f1.4) and many vendors' fast 85mm lenses. In practice, I don't find this small gap to be a big problem, as my 55mm f1.8 is usually sufficiently long, and for those occassions when it's not, than the 85mm is often just what I was looking for.

If I were you, I'd go for one of the 55-58mm fast legacy manual focus lenses, as they are dirt cheap and there are very cheap adapters for them - but, you'll need to focus manually. Those lenses can be gotten for under $50.