Joshua Bunn
18-04-2018, 02:18 AM
Hi There,
I have these nasty green halos around bright stars. They primarily show in the green channel (hence why they are green) but do not see them in the luminance subs or red or blue much at all.
Does anyone have any ideas how i can eliminate these before the processing stage? I'm using custom scientific filters in an SBIG STL11K.
An online calculator says they are 3.75mm from the CCD, this would suggest the cover glass I'm guessing, but why only in the green subs?
thanks
Josh
I have these nasty green halos around bright stars. They primarily show in the green channel (hence why they are green) but do not see them in the luminance subs or red or blue much at all.
Does anyone have any ideas how i can eliminate these before the processing stage? I'm using custom scientific filters in an SBIG STL11K.
An online calculator says they are 3.75mm from the CCD, this would suggest the cover glass I'm guessing, but why only in the green subs?
thanks
Josh