13-07-2020, 04:05 PM
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amateur
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Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 7,112
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Quote:
Originally Posted by Merlin66
... Baader issued a chart for checking reducer spacing, not for the reduction factor but the suppressing of aberrations.
This infers that if you're seeing what looks like coma at the edges, the the reducer spacing is too small.......
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Yep :-)
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