I took this one in my recent trip to my dark site.
Quite windy during the LRGB component so I used 5 minute subexposures instead of 10 minutes ( I find them sharper and smaller star sizes as well on faster scopes due to the small wells on the 8300 chip).
I used a MMOAG with this one and it is the way to go for guiding. It did a good job despite the wind. I threw out the bad subexposures (about 1/3rd of the images).
AP140 with 155TCC (reducer/corrector) FLI ML8300, MMOAG, Lodestar guider, PMX mount.
8 hours and 25 minutes HaLRGB.
http://www.pbase.com/gregbradley/image/142203219/large regular size
http://www.pbase.com/gregbradley/ima...03219/original large size
Greg.