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Tiny circle on eyepiece
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14-10-2020, 09:42 PM
alval
(Alan)
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Join Date: Jun 2017
Location: Northern Adelaide
Posts: 73
The black dot looks like the secondary mirror on the front corrector that folds the light back through the mirror to the diagonal. Its hard to tell from the photo but what eyepiece are you using in the diagonal?
alval
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