Having had no luck with off axis guiding I want to fit a guidescope to my C8 on a piggyback rail. I see that there are various sizes of rings available and rail systems. How much spare diameter should I allow around an 3.5" diameter tube so as to give me sufficient adjustment, or alternatively how much angular adjustment should I allow? I recognize that I need to balance this against the aim of keeping the guidescope as low as possible and minimizing the space that it takes up on top of the C8. Thanks
Size of Guide Rings Needed?
Started by pmlogg, 04/21/2008 06:14PM
Posted 04/21/2008 06:14PM
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