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Old 07-12-2018, 10:50 AM
AstroApprentice (Jason)
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Join Date: Dec 2015
Location: Melbourne, Australia
Posts: 349
spacers

Quote:
Originally Posted by kosborn View Post
Interesting, thanks for the link. I have a field flattener that sits about 20mm in front of the filters. I was very careful to orientate the filters correctly but I might flip the narrow band ones around and see what happens.
If the reflections are not exclusively due to the CMOS surface/coverslip, then Thomas' suggestion about adding spacers between the sensor and filters might also help...
https://www.baader-planetarium.com/e...the-telescope/
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