Thread: Weird concentric rings with PST and barlow.
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Old 02-04-2012, 03:00 PM
Poita (Peter)
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Join Date: Jun 2011
Location: NSW Country
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Weird concentric rings with PST and barlow.
If I attempt to use a Barlow with the PST and a DMK21 camera, get these weird concentric rings. Is there any way to be rid of them?
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