Thread: When is a 102mm tube ring not.........
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Old 07-09-2022, 03:25 PM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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When is a 102mm tube ring not.........
The SW tube rings are advertised as 102mm, BUT the internal diameter measures 100mm!!!!!!!!!!!!
I ordered them to mount a new 4" (102mm) refractor for a SHG.
OK, what should I have ordered?????
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