Purchased a remote for my Nikon D50 yesterday and spend some of the night outside playing around with star trails.. Great fun and learned plenty for the next attempt.. Here's one of the shots, quite short exposure time (5-6 minutes)..
Larger Version:
http://www.flickr.com/photos/50277096@N00/2828493279/sizes/l/
Larger Version:
http://www.flickr.com/photos/50277096@N00/2828493279/sizes/l/