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What filters for Horse Head with Colour CCD
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03-01-2012, 10:27 AM
Poita
(Peter)
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Join Date: Jun 2011
Location: NSW Country
Posts: 3,586
What length of subs were you taking? I find around 10-15 minute subs seems to tame Alnitak.
It could be a reflection issue from the nosepiece filter as well. Can you post a picture and your settings?
Poita
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