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Weird star shape with Ha filter
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14-10-2016, 11:55 PM
billdan
(Bill)
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Join Date: Mar 2012
Location: Narangba, SE QLD
Posts: 1,551
It looks pretty bad, not sure what the issue is, when filters age they de-laminate but it should be obvious to the eye if that is so.
I don't think it is the Orion Ultrablock, according to this chart it does not pass Ha.
Bill
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