Thread: Making a 6 inch f2.8 dob
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Old 19-09-2018, 03:28 PM
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Lognic04 (Logan)
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Join Date: Mar 2016
Location: Melbourne, VIC
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Dang
How do commercial coma correctors work with parabolas then?
That design might be useful though because someday I hope to make a 6 inch f2.x astrograph
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