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to achieve relastic colors is what we are eager to obtain in all our astro-imaging efforts, isn't it? however, the question would be: what is realistic? what is objective ?
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Hello Dietz,
You make a very good point here, one which has occupied my thinking since I obtained a monochrome camera for astro imaging and had to assemble an RGB image from three individual colour representations.
I recall asking the question here - how does one do a "colour balance"? when it's not possible to see the object one is imaging (or see it only very faintly?)
The best answer I got was to do a colour balance on a star which has a known spectral hue (e.g. Betelgeuse for reds, Rigel for blue) ... which does offer some kind of a reference white (or colour).
It is partially for this reason that I think the OSC (one-shot-colour) cameras for astro work may be more reasonable items to use, even though the Bayer Mask does cut down the light intensity considerably.
I hope you can continue your thinking on the subject, and look forward to your thoughts.
Regards,
Tony Barry