Thread: Collimation, corrector spacing, or tilt?
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Old 15-09-2017, 06:52 PM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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Paul,
With all the adjustments you have to make , what did the Ronchi screen show.
I found the Ronchi very helpful with the 12" f5 that and the final star test.
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