If you all will forgive the intrusion of a movin' picture:
night and morning over the Iowa River
(click above to view in flickr, which doesn't embed video in forum posts)
One use my continued uses for the K20D has been shooting time-lapses when camping. A camera with a more modern sensor would do the job with less noise (and yeah I might switch to the K-1ii next time around), but when at a state park setting up within sight of a public trail, I feel a little more secure risking the older hardware. At its age and after all the abuse I've put it through, the K20D certainly owes me nothing -- every shutter click is gravy. Honestly do these ever wear out?
This is with an external intervalometer and AC power supply connected with a long extension cord to our cabin. The night sequence is shot at one frame every 80 seconds; after the exposure adjustment for daytime you'll see the frame rate change to every 10 seconds. The lens is a DA15. There is some stray light from a nearby floodlamp visible in the right-hand tree.