I've had the 43mm Ltd for about a week and have had little or no time to actually use it... so sitting in front of the TV....
ISO 800 f/1.9 @ 1/20 hand held
I really love the way this lens renders the OOF areas.. while some have said it is not very sharp wide open, my mileage has differed... that's not to say that at f/4 it's not amazingly sharp but at f/1.9 it's quite sharp enough when a shallow DOF is desired.
I have a feeling the 43 will become my "almost always mounted" lens for the K5.
Daddy Likes.. very much.
So this almost completes my lenses for the K5. Just need a tele/zoom and a wide angle and I should be done. The 31, 35 macro, 43 and 77 along with the 18-135 are a pretty good selection for what and how I shoot but I am still looking for a fast tele/zoom.