Very nice image George. Very good signal for a RGB image. A "pure" RGB sure
makes colour processing easier, but none of my colour images would have
enough signal to look good without an additional "L" image.

Stefan

"George Normandin" schrieb im Newsbeitrag
...
Taken under near-full moon. A 10:10:15 RGB image with an STL-1301E camera
and a 20-inch RC Cass working at around F/5. The focal reducer was never
intended for this use/scope, and that may explain why flat-fielding
brightened up the corners too much.

For more info on NGC 6888, see:
http://www.kopernik.org/images/archive/n6888.htm

George Normandin