This is a 100% crop of the central third of a test image taken to verify the collimation of my SN8. The image is a stack of 29, thirty second exposures calibrated with Deep Sky Stacker.

Each frame in the stack was shot at ISO 100 through a Meade 8" f/4 SNT. The image was taken from Bedford, Nova Scotia under light polluted skies. Indeed there was a street light less than 20 meters away in direct view of the telescope.