I have K-5IIs and K-30(essentially the same as K-50). I'd say for $100 more get the K-5IIs, the auto focus alone is worth the difference.
K-30/K-50 is not bad at all, I actually prefer the JPG out of the Prime-M engine in K-30/K-50 and Focus Peaking is very nice for manual focus lenses, auto focus is OK in most situations too. But, I owned the original K-5 for 3.5yrs before I upgrade to K-5IIs, therefore I am immediately at home with the control layout, and with the improved low light AF which actually took care of the only thing that I was not happy with in the original K-5, not to mention the lack of AA filter makes all my lenses look sharper lol.
Last edited by elpolodiablo; 01-25-2015 at 11:47 PM.