The lens cap trick is clever be isn't there is a huge risk of moving the camera as you are actually touching and attaching a lens cap and then taking it off?
Not with the LF lenses. The lens cap just slips smoothly over it -- and keep in mind the camera with lens weighs about 12 pounds, and it was sitting on top of a massive 15 pound Bogen tripod. It would be pretty hard to move.
Cocking the shutter would be more likely to move it, though I could trip it freely with a cable release.
DOH!! of course long exposure. I remember doing it with my AE1 Prog years ago.

