Actually, you will see an article on a tool I just bought which might help a LOT. I should have it ready by the end of this weekend at the latest.

Exposures were taken between 8 and 15 seconds. I arrived just before sunset so it was starting to get pretty dark. Dark enough that live view was not much of an option.

I used a D300, the Tokina 12-24 on it, Tripod is a Gitzo with a RRS ballhead.

Roman