I bought a cable for my d80 to try this out. I went to a dark area at the base of the mountains about 10 miles away from my house, with a half-charged battery (of course), and came up with the following; 11/16/06 about 1:00 am Kinda cruddy. I could of done a little better post processing, but I just pulled it into cs2 and auto-adjusted. iso - 800 2 sec. f3.8 So, the cable worked great. Then I tried a much longer exposure. iso -800 1248 secs. (20+ min) f3.8 Same half-"asked" cs2 processing. I like the color. Light pollution from stressful city life beyond the mountains. Problem with long exposures is d80 takes as long to do the "job" as the exposures, ie; 20 minute exposure takes another twenty minutes to record the "job." Unsatisfactory. Must read the fine manual. Looking for maybe two, to five minute exposures. That should keep star arc to a minimum (20 minutes = 5 degrees of arc?). Hopefully will get 20-40 shots on a full battery (and some meteors this time) I did see two Leonids shooting through the sky, but didn't have my camera on them. Maybe tomorrow night, or the next. I have a couple darker locations I want to try. Any ideas, suggestions?