I've posted a few other threads regarding the issues I've been having with my K-r over the last 1-1.5 months now. Long story short, it seems to have developed the inaccurate focusing under tungsten lighting problem. I've got a few questions regarding that and switching from a K-r to a K-30 or 5-II.
1. Is the tungsten lighting issue able to be addressed by C.R.I.S and fixed? Or is it just an issue with the camera that some copies have?
2. Will using an off-camera flash auto-focus assist light help with this auto focus problem?
3. I've found myself longing for something more from my camera over the last month or so. I'm starting to get a bit more business for engagements/senior portraits and have also been doing quite a bit more for the school with event photography. I'm wanting a body that has a bit better low-light focusing capability and better high-iso noise. From looking at the K-30 sample pictures in the thread
"My experience with the Pentax k-30 @ B&H (BIG PICTURES)", the K-30 has almost no noise or IQ reduction up until about 6,400 or so. Would the K-30 fix my auto-focus/high ISO worries?
4. While I'm saving up to possibly switch to a K-30 or 5-II, what would be a good full-manual, affordable, flash to invest in for the mean time? Do they all contain an AF assist light, or is that only on the newer models? I have experience using flashes when working with a wedding photographer I assist on occasion, but have never looked into buying one of my own.