Thread: Size of Philips screw driver for collimating a c11
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Old 22-01-2022, 11:48 AM
Dennis
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Join Date: May 2005
Location: Brisbane
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This is a link to a Celestron webpage titled "What are the sizes of collimation screws on Current-production Celestron optical tubes"?

https://www.celestron.com/blogs/know...-optical-tubes

Cheers

Dennis
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