This is definitely the sharpest image I have ever seen for this scope by far, congratulations. I had been wondering if primary mirror on SW Quattro 12 was capable of producing best results under Australian skies, as mine had been plaqued with various issues. It turned out that some plays in the focuser itself were main causes. It's amazing that a lightweight mount EQ6r not only could carry this scope but also helped produce such a wonderful result that rivals best home observatories when seeing conditions were right.
John
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