I was using my ten inch f/4.8 reflector with a Vixen Atlux mount, PHD auto-guiding and an Atik 383L mono CCD camera.
I captured five-minute sub frames with matching dark frames and combined them with flat fields to reduce the effect of vignetting in the final image.
The total exposure times were 60 minutes using an IDAS filter, 20 minutes using an OIII filter, 15 minutes using a blue filter and 80 minutes using a H-alpha filter.
M82
