Quote:
Originally Posted by stars2go
Hi Alistair
RGB combined in CCDStack. First grey scale Ha layer added in luminosity mode. A second Ha layer was colourised and added in lighten mode. The intensity of the colourised layer and its opacity controlled the level of red in the image. In the RGB image the nebula was mainly blue and there was a strong tendancy for the HA to swamp that. All subs were 10 minutes.
I am pleased you liked it
Thanks
Colin
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Thanks Colin,
With the colourised layer, was that added to the blue or red channel as this nebula is predominantly blue as in the image below? is it possible to create a synthetic luminance and then add Ha for a HaLRGB and thus preserve the blue?
http://images.nationalgeographic.com...33_600x450.jpg
I just had a look at the image on my PC and noticed the red and blue stars have white cores, is this a result of stretching? did you use a star mask?
just learning the ropes with processing so thought I'd ask.
That CDK-700 is one fine scope with a lot of zero's in the spec, zero backlash, zero pec, zero/no coma....
sigh..
Cheers
Alistair