Decided to share this pdf document that show/describe how to make a comet picture and also because the luminance part was taken with my Horizon CMOS camera.
Please check this copy & paste info. from astrobin/dropbox link included, thanks,
UPDATE 15. Aug-2018.
A document that show & describe what I did to make this Comet picture.
Please check out this/below dropbox link info. (it's a pdf file, 3.4 MB in size), thanks,
https://www.dropbox.com/s/hap7t3zgsp33zhx/SW%20descriptionComet15Aug-2018-Final.pdf?dl=0CS Niels