I took my K5 to a high school chorus last night. Ambient only. Not sure if these are deplorable, adequate, or superb when we're talking about pushing the limits of the ISO capabilities for the K5. Its worth noting that because of the extremely low light I was shooting wide open at 2.8 with my Tamron 70-200. So keep in mind the shallow depth of field. I'll post the SOOC and the results from just LR3 using the noise reduction sliders.
What are your opinions?
SOOC RAW at 12800 ISO
Noise Reduction slider and a few other adjustments in LR3
6400 ISO SOOC
PP'd in LR3 with noise reduction
6400 ISO SOOC
PP'd with noise reduction and slider adjustmens
They clean up nice but I'm not sure if the SOOC should be better. I'll defer to the experts for their opnions