Stars were visible down to mag 5. The first two evenings, I used total exposure times of 30 min using an SII filter, 30 min using an OIII filter and 4 hours using a H-alpha filter. On the third evening, I used a total exposure time of two hours using a blue filter to reveal the structure of M78.
I was using an 80mm, f/7 refractor on a Vixen Atlux mount, PHD autoguiding with an Atik 383L monochrome CCD camera.
I captured matching dark frames and flat-fields to reduce the effect of vignetting in the final image.
M78 and Barnard's Loop
Closer view
