Using the lessons learned with the Eta C image, here is M8 and M20.
11 x 60 sec subs - a master dark subtracted from each sub - software ISO noise reduction (do I need both?). Canon 1000D @ iso 800, WB daylight, ES80, Tak EM-200B - lots of light pollution.
Does it matter that only the luminance channel was denoised? Should the RGB channels be denoised also.
I can separate the two and work independently on each - not exactly sure how to put that to good effect?
When calibrating the RAW files, that is, setting the EV, exposure and green channel etc, should I adjust each image to the same luminance by adjusting the EV? Am I loosing signal if I reduce the EV of an image?
Lots of questions
