Picked up my K5 last night. First thing I decided to do this morning was do the AF adjustments for all of my lenses with my new body.
My K7 was all over the map in this regard. In fact when I got my new DA15 a couple of months ago I almost sent it back because the images were so horrible before realizing that it was just very badly front-focused. On the K7 I needed a body adjustment of +8 and my lenses varied from -5 to +9. On top of that, every time I focused, there was enough variability in the focusing endpoint that I was never entirely certain if I was setting the adjustments correctly, but in the real world the pictures were far better than before adjusting so I was obviously improving things by doing the adjustments.
Well I just finished doing the focusing adjustments for my new K5. Not a single lens required adjustment. I'm stunned. Not a single one!!!
Frankly with the variability in the K7's results I figured the variance was all in the lenses, but that doesn't appear to be the case now. I can offer you no explanation, just my findings but needless to say I'm thrilled!
For further information, the method I use for adjusting front/backfocus is
explained here. The lenses I own are all of the DA Ltds (15/21/35/40/70), FA 135/2.8, DA 55-300 and DA 12-24.
EDIT: Oh, I also tested the lenses at two different distances (40mm and less at 1m and 3m, longer than 40 mm at 3m and 5m) and the zooms were tested at all the different marked focal lengths (i.e. 55-300 was tested at roughly the 55, 70, 100, 200 & 300 settings).
Last edited by bpjod; 10-31-2010 at 10:40 AM.