Uploaded personally by Ned Bunnell (President of Pentax Imaging USA):
K-7 User Manual
That manual explains a lot of things. It’s a good read for anyone considering the camera and who’s waiting for some reviews.
For instance I’ve seen some video clips from previewers (BJP) that are horrible, shaky and full of rolling shutter, but I’ve also seen hand held videos that’ve been rock steady. The reason for the discrepancy? Shake reduction is off by default!