I've dabbled a bit in Time-lapse using my 20D. I use an intervalometer, shutter duration depends on what your trying to capture. Star tracks generally 20sec, stop action is faster, of course.
Converting to video ~15 fps, so you can do the math, usually several thousand frames for a 15 sec clip. Photoshop CS4 can render a batch of image files to HD video clip.
http://www.flickr.com …ndevilstormin/4362200356/![]()
http://www.flickr.com …ndevilstormin/4313013716/![]()
http://www.flickr.com …ndevilstormin/4367498950/![]()
http://www.flickr.com …ndevilstormin/4227370137/![]()
http://www.flickr.com …ndevilstormin/4299638220/![]()
great site for time-lapse set-up, processing, gear, etc
http://www.timescapes.org![]()



: 


