http://www.dropbox.com/gallery/25160...amera?h=12f9b0 for several differently processed images of M42.
They were processed from the same files, some 30s, many 60s, and some 300s exposures. Guiding was lost at one point.
Meade LX800 10" scope on a Celestron CG5 mount (which is not really up to the job)
Regards,
Pieter