Originally posted by zeitlos @Digitalis: Thanks for your reply!
I've now sent in both my K-5IIs and my K-30 to have it's AF-Modul adjusted. As some of you hinted, I'm also pretty sure that (at least as far as its performance together with my K-5IIs is concerned) there's something wrong with the cameras. Not sure if's theres a FF/BF at my K-30 (see the pictures I've just posted in my previous posting), but I will tell you as soon as I got it all back.
- First point: your shoots with tripod are better.
- Second point: shooting the test chart, one can see the focus is done on the +1 or +0.5 instead of 0. You can already see the thin aspect of the deph of field. And if not perfect, the +1 is already ok startinng f/1.8 and quite sharp at f/2. Add some punch with post processing and on a real photo when f/2 is relevant in term of deph of field and it will be perfect!
For the doll, looking at the shoot @f/4 => We can see the lens is razor sharp... But still most of the subject is not in focus ! The eyes are and elbrow look in focus, but already the mouth and hair in front of the doll are out of focus. Clothes are most out of focus too. And this is f/4.
With so thin deph of field (due to small subject and small distance) how can you expect to see if your lens is sharp or not @f/1.8 with less than twice the deph of field of f/4 that is already too thin?
I really think you should take a look at dof master (
Online Depth of Field Calculator). Enter you parameters and you'll understand that this deph of field of f/1.8 is too thin for the subject distance anyway.
Another question for you to solve is why did you focus on 1 instead of 0 on the chart? With a very thin deph of field on must ensure focus is exactly where intended.