Another test of the 0.8x TS corrector on the C11 with modded Canon 550D with IDAS LPS-D1 light pollution filter.
The wind was buffeting the scope quite badly so the guiding errors were around 1.5 arcsec RMS at best. I've stacked the best 8 subs out of 29 - each was 5 minutes long. I didn't take any flats. The collimation is slightly out at the bottom right but otherwise all is looking good for the next clear night.
(http://www.markshelley.co.uk/Astronomy/2014/witchesbroom24052014small.jpg)
Larger version: http://www.markshelley.co.uk/Astronomy/2014/witchesbroom24052014.jpg
Mark