Thank you for your comments David and Allan, I appreciate them.
CCDStack has mostly been my goto image processing application, but it struggles with large sets of images.
I have previously dabbled in PixInsight and recently decided to knuckle down to better understand PI and its many capabilities. To this end, I purchased the Adam Block Fundamentals video tutorials last week and took a deep dive into WPBB, Cosmetic Calibration, Local Normalisation and the Screen Stretch Function and came away feeling so much more confident in using PI.
There is still so much to learn but it is nice to now feel confident with some of the more basic fundamentals.
I used @Focus3 in The Sky X Pro for automated focusing. I think I also need to check the collimation of the Mewlon 210 when I have more time (and cloud free skies!).
Thanks for your research Allan
and the links you provided, I suspect I’ll have another go and try exposures of ½ sec and 2 secs to see what data they provide.
Cheers
Dennis
EDIT: I took the Damian Peach image and overlaid it on my Lum data and uploaded the results.