HI there jtlandreneau, please see the thread: http://stargazerslounge.com/topic/226723-optical-train-issue-odd-shadows-can-you-figure-it-out/ This image is explained better there ;)
Briefly is the word... Terrible conditions last few days here in London. But just had it barlowed on the 12" dob pointed at Saturn. Colour and banding, shadows and gaps... Shame the clouds only gave me a few minutes of observing!
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