Done on 3-27-10-- Right now in arches for night photos and anything else I can shoot in this god awful desert place. Sand and Rock as far as the eye can see. What a place, boy am I thirsty. Noooo we had a great time last night first time shooting the rocks at night. We stayed out till 11:30, the moon was out but we had no wind at all, temp was about 39deg's.
If you plan to do this a few hints, if you want sharper stars you need to keep your ISO up above 600iso and f stop more open for a faster Exp. time. It is imposable to focus the camera at night so you have to find the spot on the lens next to the infinity mark. Problem is many lenses let you focus past this mark and your lens acts different when cold and hot. I found that on a canon 17-40 f4 l lens your focus at 17mm is just before the start of the infinity mark. Now for the biggest hint is to go out and pick up a light from http://site.gregmcgeeengineering.com/Home.php The one that I used was MTE M3-2I Flashlight CREE 740 Lumen . I also picked up 4 reachable battery's and charger. This thing is a super nova, about the size of a mini mag with the light out put of a 1MIL candle watt heavy lantern. To save the battery I used this thing for the exposure only but found that you can get over 30 minuets of full power from one battery. f5 48seconds 800iso' Enjoy.