Thanks for everyone's input and comments!
So to elaborate a little more... I am using DSS 3.3.6 to stack and Photoshop CC to process.
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Originally Posted by glend
If your stacking those 7 subs in DSS, don't mess with them first, get your final stacked RAW file and take it to your final processing software. I could tell you how to fix it in Photoshop but that won't help you. If you have an auto colour correction option try that, if you can manipulate the balance of RGB, just dial back the blue slighly. It should not affect the overall luminance. Some software has a box to tick to "preserve luminance" when making adjustments.
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That is similar to what I've done, would like to know a little more of how you would fix in PS. I used every tool I know how to use.
Quote:
Originally Posted by glend
One other thing, you are stacking the fringe killer and the CLS, it is probably worth looking at the sprectum passed by each. The CLS seems to let through alot of Oiii (blue) and Ha (red) so your image is no surprise as looking like a narrowband image, over lay the fringe killer and have a look at what gets through. I think you might be ok with just the CLS, or at least try it to gauge the difference.
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I agree, experimentation might be required... for no other reason than it should be interesting and fun... as well as to find an answer.
BTW, the Bresser is an Achromat, hence the fringe killer to knock back some of the chromatic aberration.
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Originally Posted by skysurfer
Nice picture.
The CLS filter blocks yellow color out completely, hence the bluish tinge.
But there are several ways to compensate it.
In PS you can make a color balance adjustment layer, with balancing cyan to red, magenta to green and yellow to blue.
And another option is using the hue/saturation adjustment layer with which you can tweak the hue, saturation and brightness of each color.
Do this in the final image, i.e. after stacking.
Or use the 'lonelyspeck' method with Photoshop. Some more work, but works very good, last week I did it with my Vela Supernovan Remnant image.
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While not a PS guru by any stretch of the imagination, I did try some of your suggestion, which got me the image you see. I'll have read of the link you posted.
Would anyone be interested in having a go at the original stack and give me some feedback on what they did?