nice shot.
the rosette is fainter than i thought before i imaged it, but i would agree that one hour on modded 40D with Tak at f3.3 (same scope as me by the sounds of it) should have some more red. what processing steps have you used that affect the colour balance?
without any colour changes, the natural colour balance of the astro 40D will be strongly red so you may have gone further with the corrections than you need to?
phil
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