Is the amount of green dominance to much in my RGB's ?

[Thomas]

Attached is a picture of a RGB combination after calibration with just an auto stretch (channels not linked) from a really dark location with excellent conditions.

I am wondering if the amount of greenish dominance is "normal" for my setup Tak FSQ 106 ED - Astrodon Gen II Filters , KAF 8300 Chip , or is this a bit above the limit ?

The histogram is zoomed in.

Thomas

R/G/B Each 18 x 420 sec

[RickS]

That doesn't look unusual for an RGB combination that hasn't had background neutralization done.

[John_Gill]

Hi,

After you run PCC or DBE or ABE the image will look perfect.  Some of my images start as blue or red or orange but after PCC it is all good.

Look up
John

[Thomas]

My question was more based of the amount of the greenish dominance, not how to remove them.

Edit: With more accurate data's ...

I calculated originally the green dominance just with the difference between the QE at between RGB but that was wrong.

If the QE values are "rescaled" to get the approx. difference one can use Blue (450nm ~ 41% QE) as 100% and  Green (550nm ~ 54%  QE) would then  131 % .

At the peak:
Green is then ~ 31% more dominance then Blue.
Green is then ~ 22% more dominance then Red.

Although the filters should be parfocal they have huge differences.
http://interferometrie.blogspot.de/search?q=filter#!/2016/08/lrgb-filter-test-20160522.html      use: LRGB Filter Test 20160522         in the search option

[RickS]

I find a significant amount of variation in median value between subs with the same filter, presumably due to atmospheric conditions.  Depending on the reference sub you pick for integration that will translate into differences in median value for the integrated masters.  QE isn't the only factor to take into consideration.

Cheers,
Rick.

[Cosmick]

Although the filters should be parfocal they have huge differences.
http://interferometrie.blogspot.de/search?q=filter#!/2016/08/lrgb-filter-test-20160522.html

Parfocal only means that the filters will focus at the same point when using reflective optics.
It has nothing to do with varying transmission levels, which is what you are talking about here.

[Warhen]

Simply unlink STF RGB channels and Auto Stretch again. The disparity will be eliminated by BackgroundModelization. There doesn't have to be a huge disparity between the histogram channels to display in this exaggerated manner.