Originally posted by avcabob I have turned off focusing on shutter half press and use the AF button to make the camera focus.
For AF lenses, the above is my K20D's set-up and for the same reasons.
For Manual Focus lenses, I re-activate the shutter's half press focus. My right hand's lower three fingers support the camera. I watch for the focus signal via the view finder while my index finger presses the shutter half way down. I spin the focus ring with my left hand until I get an in-focus signal. Once it appears (flashes), I continue to fine tune until the subject is in focus.
Sounds complex,
but these two approaches work great for me.
Also, I shoot DNG in my K20d and find WB set to 'auto' works great 95% of the time. The remaining 5% can be adjusted via PP. I don't feel a need for a dedicated WB button.
Cheers...