I decided that it would be fun to have an image of the K-5 off kilter, so that I could extract a diagonal image of the Pentax and K-5 logos on a narrow strip image. I took a few shots and brought them onto my computer screen.
This is what I got. Wait a moment - the camera is perfectly level, I am what's tilted.. and the walls, doorframe, the rest of the universe! The K-5 orientation sensor is really, really good! For amusement I used Picasa to filter it as a B&W image then used their newer 'neon' filter to add some (yes, very subtle) Pentax-red highlights. Strangely enough, I have to leave Picasa to reverse the mirror-image photo.. I thought all graphics software made since 1980 had the flip routines.
Like so much with the K-5, I expect I can control this - and some day I'll see how. Since software can rotate a degree at a time it isn't important enough to spend an afternoon on it.