Thread: bargain GS Crayfords
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Old 21-12-2005, 04:44 PM
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Starkler (Geoff)
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Join Date: Sep 2004
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Makes collimation so much easier when your focuser tube doesnt wobble

In mine I can hang a 31 nagler out of a long barlow with zero image shift.
If you dont have one, get one !
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