GSO 305 mm - Canon Rebel XT - ISO 400 - 48 min - 12 x 240 seg - OAG - DSI1 - Coma Corr.
large scale:
http://cdn.astrobin.com/images/5440c...b80286c6f8.jpg
Well, I tried again, the sky was very very bad. They were 27 x 240 sec ( 1 hour 48 min.), but only 12 were fine to use. Much white glow, the nebula vanished inside.