I was down the coast this weekend. It was a dewey night, but clearish so I set the Canon and kit lens on the tripod, framed the next door neighbors roof for a reference point, and proceeded to manually trip the shutter every thirty seconds (using my wristwatch) for thirty second exposures.
The lens kept dewing up, but I very carefully continued to wipe it with a tissue while trying not to move it between shots.
I think the dew actually added some nice effects, so next time, I wont allow it to make me give up short, just persist despite the varied shots.
http://www.asignobservatory.com/widefield_and_time-lapse.aspx
Hope you like it. I am definately going to do more of this up in the drier air of the Canberra mountains.
Baz.
That's pretty neat Baz. You are also getting a very interesting effect with Sirius. Looks like a quick supernova.
Carole
Thanks Carole,
That was a result of dew building up on the lens. When I wiped it with a tissue, the star returned to normal.
Baz.