Hi Joe, Thanks for the thoughts. I had a look at S&T and also did a bit of looking on the web but I could not find any common thread. I've no real desire to get big into pretty pictures but I'm between projects and with the skies looking ok I thought I'd give it a go. I think I'll find a pretty face on spiral galaxy and shoot 5 or 10 one minute exposures in each color and then mix and match the results to see what happens. patrick On 26 Apr 2008, at 00:17, Joe Bauman wrote:
Hi Patrick, I'm probably not much help because I'm still learning. But I generally shoot the same exposure for each of the three colors. Then I think the clear should be longer, maybe three times the exposure for the others. The best way to get an idea is to look in S&T and find one of the amateur views, and the caption will list the exposure times. Good luck, Joe
PS: What are you shooting?