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Old 08-06-2023, 11:11 PM
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alpal
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Join Date: Jan 2012
Location: Melbourne
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Quote:
Originally Posted by David Fitz-Henr View Post
f/5.8 and a pixel size of 9microns yield a scale of 0.99 arcsecs/pixel.

I took 41 lum subs ranging from an average 1.87-2.97 arcsecs/pixel. I then divided these into 3 groups to produce 3 luminance combines for high res / high+medium res / all subs (all done in Registar & CCDStack). In Photoshop I create masks and blend the three using the high res image for the bright regions, medium+high res for fainter regions, and all subs for the background.
I take the R/G/B subs when the seeing isn't good enough for luminance (but still not too poor ).

Thanks David,
that sounds like a very wise way to process.
Smaller pixels might have given a bit extra
and maybe 3 x drizzle on the galaxy would have given more detail too?


cheers
Allan
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