After a long time with bad sky I could get M51 this week.
It took me quite a lot of processing to eliminate most of the noise, but at least the colors came out quite nice.
The first time I had no problems to guide at 1.5m FL for 10 min thanks to fixing my main mirror of the C11 with 2 screws and using the 4" TMB scope at f/15 for guiding.
see images and processing details at:
http://panther-observatory.com/deepsky.htm#74
Johannes
It took me quite a lot of processing to eliminate most of the noise, but at least the colors came out quite nice.
The first time I had no problems to guide at 1.5m FL for 10 min thanks to fixing my main mirror of the C11 with 2 screws and using the 4" TMB scope at f/15 for guiding.
see images and processing details at:
http://panther-observatory.com/deepsky.htm#74
Johannes