Here's one of my collimation experiments from last week but it produced a half reasonable image. It is the centre of the Heart Nebula IC 1805.
One hour of data in the usual 30sec subs (a proper image would require a lot more). Modified Sony A7S on Celestron C11 with Starizona LF Corrector.
(http://www.markshelley.co.uk/Astronomy/2018/heart_20180804_small.jpg)
Larger version here: http://www.markshelley.co.uk/Astronomy/2018/heart_20180804.jpg
I haven't managed to show the fine structures in the filaments - I think H-alpha is much better for that.
Mark