I'm shooting a concert at the end of August. I wanted to use my E-P3 and shoot avaliable light. The only problem is the only lens I have that will fit the bill is the Panny 20mm. But I'm going to need another lens with a little more reach. I was thinking about renting either the Olympus 75mm, or maybe the Panny 30-100mm F2.8. Not owning or shooting either I just don't know which would be a better fit. I will be able to get right up to the stage just feet away at times. Other times I may be a several feet away. If you have both or have used either which lens would you take with the Panny 20mm?