it wasnt sceintific at all, took a photo of a remote control at an angle. did the adjustment, took the photo again....and it was corrected. did a few more test shots......just to be sure....
i didnt get to crazy on it....it's not like you can micro-adjust it in the first place...
and no, i didnt preveiw it on the pc first, i was just looking where it focused, and the k20's screen is plenty big for that...
as for the steps...
i was kinda bored...so....here's some shots of the menu
and a shot of the k20 w/ a mounted sigma lens..(not the one I adjusted)