Thread: Help with Meade 0.63 focal reducer for visual use.
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Old 08-02-2013, 11:21 AM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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Andrew,
As long as you know the fl of the reducer, you can use the spreadsheet to calculate the spacing. You can verify the efl by measuring the resultant image plate scale.
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