Originally posted by Waratah
Have done two shoots with 1.06 - camera is reliable. But (and no real science to this) i wasn't over the moon about focus in first shoot post upgrading firmware. Not disasterous but probably worst in terms of focus. Have only considered fine adjustment of one out four lens was necessary in past. I spent some solid time adjust all four lens and all now need adjustment between +3 and +5. Most recent shot was crisp again.
I say un scientific because i hadn't spent serious effort (or felt the need to) with v 1.0, 1.04, and 1.05.
I took my K-5 II with 1.6 out yesterday with my "new" FA 50mm 1.4, and I'm not crazy about the results. It had difficulty focusing on a church steeple that was about 500 yards away in broad daylight. Not sure if this is a problem with the firmware, the lens, or the operator!
I also seem to get more purple fringing with this setup than I was getting with my old K-5 and kit lens. Shooting raw and reviewing in LR3. Again, new camera, new lens, and new firmware, so I can't say for sure what causes the problems.
Thinking about going back to 1.5.