Help with ASI OAG prism stem

Focusers, Filters, Barlows etc..

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Help with ASI OAG prism stem

Postby maudy » Tue Nov 07, 2017 1:15 am


In exploring reflections in the imaging train between the ASI1600mm-c, ASI EFW and ASI OAG, I discovered the the metal stem around the OAG does have a slight shine.

How can I blacken these spots properly to reduce their shine?

Thank you.

Please know there were some reflections due to having the filters installed incorrectly. Flipping the filter ver resolved that issue.
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Re: Help with ASI OAG prism stem

Postby Sam » Wed Nov 15, 2017 1:24 pm

you can try to use one blank pen to paint it
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