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Please recommend an 80mm refractor that doesn't need an focal extension tube
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02-04-2012, 09:54 AM
Poita
(Peter)
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Join Date: Jun 2011
Location: NSW Country
Posts: 3,586
Seriously, I'd consider ditching the ED80 and get an OAG.
The QHY5 is sensitive enough for most targets and the problems just disappear completely.
Poita
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