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Reflections in Astronomik IIc filters
I am surprised by this but I am seeing pronounced reflections around the brigher stars in images using the Astronomik IIc LRGB filters. I had believed that the new series II had the problem licked. But I am getting it - mainly in green and less so in blue. It's a PITA.
Anyone else experienced this? The optical train in a Tak FSQ85 with a Tak .73 reducer into an ATIK 4000 - so not a huge chip. The scope is fairly fast at f3.9 (with reducer) and perhaps this is a contributor.
I'll attach a couple of examples and invite comments. These are both green filters.
Peter
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