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Rc8 odd rings
Hi Everyone,
I have caused an image defect on my RC8. Pictured are the rings that appear in each of my images no matter the direction I am facing. I am happy that I know the cause of the elongated stars, but the rings confuse me.
My imaging system has undergone several changes simultaneously so it is difficult to isolate a potential candidate. But here is the list of changes so far;
New Orion off-axis guider
New Moonlite 2 inch to t-thread adapter
New Bob's Knobs for secondary
I am using an Orion parsec 8300 Monochrome, with 2 inch filters. This is the same configuration as 2 years ago when I last imaged without the aforementioned defects.
I know that a flat will illuminate the issue but I would rather deal with the cause.
I believe that the secondary might be too far from the primary as a result of installing the Bobs Knobs, but I am unsure on how to prove this either way. Any help would be greatly appreciated.
Cheers,
Trent
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