Thank you all for the tips. The key reason for FP failure seems to be Pentax implementation of stopping down which does not make sense. No wonder, so far I got more keepers with my k-x than k-01 but things are improving now - tried following based on some tips here:
1) Shooting in M mode since it does not stops down during focusing. However, you lose all the advantages of A mode but it works.
2) Even better way is to use red button for DoF preview and enable DoF preview while adjusting focus (for large apertures). This works like a charm. You can instantly see how misleading was the focus peaking without it. I practiced it today morning (it's morning here) and keeper ratio has dramatically increased, almost all the shots were in focus with 50/1.4 and 85/1.4
Originally posted by Sagitta I tend to cheat and use the FP with the blown highlights/shadow display turned on for the LCD. This tricks the camera into thinking the focus peak glimmer is a highlight, and it flares yellow as a result.
Please help me here, can you point me to exact settings menu item. I enabled Highlight/dark in the playback settings menu and it doesn't seems to have any effect so I seem to be using a wrong settings.
Thanks