This SUCKS!!!
Of the 223 low light church Christmas show shots I took yesterdat, about 220 were perfectly in focus and sharp... using the AF button for AF.C and selecting focus points.
Now I have more work to do. Used to be the keeper rate was low so I could just pick the least blurry ones and move along quickly. Now I have to decide the best or process even more photos!!!!
I will say that the red saturation was pretty high in high ISO, but just dropping that a few notches in LR5 cleared that up nicely.
I show in TAv mode and let the camera select the ISO -- giving it full range.
This was shot at 250mm (60-250mm lens) f4.5 1/125, I was sitting using a monopod and only house lights. K-3 selected ISO9000
Here's a 100% crop
That from this (will do some noise reduction later).