Re: M 81 and M 82
Posted: Fri May 06, 2022 11:41 am
Hi Dietmar,
When processing frame filling nebulae I am always happy when I do not have to use a ROI at all. But your data has to be good then, since everything gets exposed...
The effect of Cap green might be barely visible especially when the color balance has already been okay. It might be more noticeable when using the MaxRGB view. If I remember correctly there were green dominant pixels in the galaxy core which is not plausible I guess. Thus I just capped green and the green dominant pixels went yellow. Probably not necessary...
Regards
Stefan
I think it's especially helpful with galaxies since you can focus on the dynamic range of interest by slicing the galaxy.
When processing frame filling nebulae I am always happy when I do not have to use a ROI at all. But your data has to be good then, since everything gets exposed...
Definitely
Mmhh...usually I do not use Highlight repair. Maybe I accidentally clicked while hovering over the slider?
The effect of Cap green might be barely visible especially when the color balance has already been okay. It might be more noticeable when using the MaxRGB view. If I remember correctly there were green dominant pixels in the galaxy core which is not plausible I guess. Thus I just capped green and the green dominant pixels went yellow. Probably not necessary...
It doesn't add much in images of regions like Ursa major since there aren't many stars anyway. But with nebulae within the milky way disc it makes a huge difference in my eyes when the star field is pushed back.
Yes, this is a pretty precise analysis ;
Maybe I noticed and forgot about...anyway, I don't remember Mike's explanation might apply... But to counteract this you might very carefully adjust the gamma slider.
I would like to give it a try since I don't have new data of my own anyway
Regards
Stefan