Hi all,
Just a quick comparison, I thought it was kinda interesting.
Taken with st4000xcm with ao8, eq6 mount, internally guided. Same 10 minute sub exposure length. The difference is the wide field is taken with an Vixen ed103 refractor and the narrow(er, thats for you fred) field is taken with a vc200l.
One thing that I noticed form the comparison is star color. The refractor at f7.7 is slightly faster and is burning the star colour out to white, the vc200 at f9 is a little slower and I think 10 minutes is about the sweet spot for this type of brighter nebulosity, without blowing star colour. So in future the subs exposure length for this refractor will be dropping to around 8 minutes. Moot point anyway now that I have my new vixen Fl102.
Comments welcomed
Brett