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Old 08-07-2019, 10:03 AM
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ChrisV (Chris)
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Join Date: Aug 2015
Location: Sydney
Posts: 1,509
Have you thought about the 290mm mini, or is it out of budget. I haven't used oag much but the 290 has a slightly larger sensor which might make it easier to pick up guide stars.

Some also use the 174 (or is it the 178) although it's sensor is slightly larger than the prism in the zwo oag - so that might be a bit of a water?
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