Hi Scoper, it's a subjective thing, but I do know that high resolution planetary imaging is along the most demanding activities on opitical quality. With this as a benchmark, you only need look at the planetary images produced and posted here by Mike (iceman) and David Pretorius who both use a 10inch F5 reflector (I think both GSO too). Both are producing truly world class images. The proof of the pudding and all that...
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