I took this over a few weeks. The Ha a little while ago and the LRGB over one night.
Planewave CDK17, FLI Proline 16803 and Paramount ME.
I collimated the scope and checked primary to secondary spacing before this LRGB part of the image.
Collimation need a slight tweak, spacing seemed fine (it has to be accurate to +/- 1mm).
HaLRGB just under 8 hours total. Seeing was poor, focusing was a bit tricky at times as the same focal point would show one in focus and the 2nd would show some poor seeing and it would look a bit out of focus.
The seeing generally improves as the night goes on and the images seemed to be sharpest as usual when taken near the zenith and after midnight.
http://upload.pbase.com/gregbradley/...35964244/large regular size
http://upload.pbase.com/gregbradley/...64244/original large size
Greg.