I have the Fujinon 75mm f1.8 c mount lens. It is very very compact. It is very affordable. It has full coverage for m43 with no vignetting. And it is sharp.
Bought it from evilbay and it looks like this.
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I hardly use it though cos it is too long for my style of photography, but if you are an outdoor type and like the 70-200mm range, then this lens is going to be a compact, stealth killer lens, and it is more than one stop faster than zooms. I guess you could use it for theater or indoor event shots too. It is so small you can keep it in your pocket and struggle to find it later ...hehe a joke.
I have just one shot using this lens posted here, so it may not be a full representation fo what this lens can do.
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BUT, the Oly is AF and it is SEXY. At such a long length, it may just be worth it if you are going to use it often. I dont.