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Old 04-01-2012, 10:36 AM
Poita (Peter)
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Poita is offline
Join Date: Jun 2011
Location: NSW Country
Posts: 3,585
Yeah, take out the IR filter and see if the problem goes away, if it does then changing its position can often solve the problem.
If the problem doesn't go away, remove the reducer and see if it is causing it.
If the problem is still there then a filter to tame Alnitak might be in order.
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