Last Saturday my wife and I went to see "Divas Through the Decades" at the Palace Theatre in Manchester, NH. Through the whole show I was thinking, "Whatever possessed me to NOT bring my camera to this show?" After the show I spoke with an usher about photography and she introduced me to the theater CEO. I spoke to the CEO and he invited me to come back to the Sunday matinee and shoot to my heart's content.
Using my GH2 and two fast, old primes, I shot over 600 photos and posted roughly a hundred to Zenfolio, http://homershannon.zenfolio.com/p462790727. I shot at ISO 1600, which looks fine with Lr luminace noise reduction at 30. I was getting between 1/60 and 1/320 for shutter speed, depending upon the scene lighting. All the shots in the Zen album have some extra clarity and brightness adjustment in addition to basic cropping and sharpening.
I'm pretty pleased with the results.