One of my favourite areas north of Sagittarius. Two panels of 1h each with the C11/Hyperstar combo last night. Again same image tilt problem crept in at the bottom of the field. Very annoying. It's following a pattern and it's not random. I know it is definitely not initial collimation. I'm starting to think it is something that is temperature related with the mirror lock or corrector cell. Will figure it out eventually.
There's a lot of faint nebulosity in that shot. For once it's calibrated

. I finally figured out last night the sweet spot for the intensity of my flats with the hyperstar. So I can calibrate the field nicely now and what a difference. Brings up all the faint stuff effortlessly.
There's a better res
here [610KB] withouth JPEG artefacts and a big full field
here. [1.18MB] so it's download friendly.
Enjoy the shot, got plenty more to process from the same night.