Thread: Can you use .... ??
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Old 07-03-2020, 10:44 PM
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JeniSkunk (Jenifur)
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Join Date: Jul 2018
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Col, to do a 30inch f3 Dob, you're looking at a focal length of 2286mm.
But wouldn't such a scope be even more impacted by coma, than the proposed f4?
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