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Hi Gordon.
To setup sounds very technical and expensive....
Could you please post a raw Ha and luminance sub?
When I image the andromeda in Ha all I see is the core and no detail of the peripheral spiral arms.
What exposure times of each channel would you need to get something as beautiful as this??
Sorry to ask so many queationa Gordon. I am still very new to LRGB and NB imaging.
Thanks.
John
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