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Old 19-07-2019, 08:00 AM
kosborn (Kevin)
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kosborn is offline
 
Join Date: Mar 2018
Location: Canberra
Posts: 290
Quote:
Originally Posted by AstroApprentice View Post
Do you have filter rings installed? If not, contact ZWO and they will provide them for free. They help reduce internal reflections - there’s a thread on CN about them. Perhaps try that first as it won’t cost you anything except a week or so waiting for post.
Yes, I have the filter rings installed (they came with the filters). I found this interesting comparison on CloudyNights directly comparing Astrodon and ZWO filters. The halos weren't present on the Astrodon filters. I wish I could find a similar Astronomik/ZWO comparison.
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