On my KP none of my lenses focus "right" without adjustment, and *all* of my zooms FF at the long end and BF at the short end. Even my DA 20-40 Ltd. bought new from B&H.
My K-3 seems to have the same problem.
My old battered and tattered K-5 that once fell 7 feet onto solid concrete? No issues at all. I never even realized there was a fine tuning adjustment with that camera...
because I never needed it.
Are my KP and K-3 both off by sheer luck? I ask because I know they've been tweaking AF algorithms via firmware a LOT in recent years. I know that all the AF advantage of the K-3 II over the K-3 (the II was said to be slightly better upon release) came to the K-3 via a firmware update. I'm worried that this algorithm-tweaking may have messed stuff up, since the K-3 and KP have been updated several times, but the K-5 hasn't had a firmware update in quite a long time now.
So I just want to make sure before I send the KP off to Precision for warranty service on the phase detect system. (They seem to charge a minimum of $344 for out-of-warranty service, so sending the K-3 in is a no-go, I can just get another one for $350-400 all day long.)
Edit:// I should note that I'm not just going by the image. The lenses are physically focusing to a different point in the distance scale when on the K-5 relative to the other two.
Last edited by Volvo244T; 05-20-2021 at 09:32 AM.