It was a clear night last night, and I just had to try out a star-trail shot, even though my wide-angle lens is away for repair. This was taken with my next-widest lens: a 50mm f/1.8. It's a three-hour exposure in total, consisting of 36 five-minute exposures taken automatically by the intervalometer attached to the camera. I was indoors in the warmth while it was all going on:
It would've looked better with a wider angle lens, but my wide-angle should be back soon, so look out!