21-08-2015, 05:09 PM
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Astro Noob
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Join Date: Dec 2011
Location: Sydney
Posts: 1,982
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Quote:
Originally Posted by multiweb
Ideally get a CF tube thick enough. Otherwise I reckon you could mount the focuser assembly on additional tube rings if it's going to be too heavy. At f/4 any flexure will kill your collimation. It's a world of pain.
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Thanks Marc.
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