http://bb.nightskylive.net/asterisk/...hp?f=9&t=14503

"My night sky/landscape photographs which are my trademark have traditionally always been single frame shots of both the night sky and landmarks in one single exposure. In the olden days like for comet hale-bopp, the longer time exposures with tracked camera to follow the stars would always leave a tell tail sign on the landscape rocks as they would blur if lit or they would cast a shadow against the background stars if you lit them momentarily like with a flash. Now a days, all is different. Anybody with a decent digital camera like canon 20D and 24mm lens with high iso like 1600 at f/1.6 can record deep detail in the Milky Way in just 20 seconds and 10 times more stars than the eye can see." Wally Pacholka