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Old 05-12-2013, 12:19 AM
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pmrid (Peter)
Ageing badly.

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Join Date: May 2008
Location: Cloudy, light-polluted Bribie Is.
Posts: 3,665
Lee, the answer is yes, I have - I assume you mean their Series 2c filters.

I have had a lengthy exchange with Astronomik about exactly this problem. And in the end, they approved a return and refund which has now been processed by OPT without any argument.

I have also recently noted that strong halos were also forming around a Baader OIII filtered image of bright stars - but not Ha or SII. The thing they had in common was the camera. I haven't spoken with Baader about their filter but Astronomik have suggested strongly that the problem is one of reflections and that the cause lies as much with their filter as with the coating on the front window of the camera. Same manufacturer as yours by the way but different camera.

Peter
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