My SV66ED is essentially the same scope. If you remove the 1.25" visual back you have a standard SCT thread. Attach a 2" SCT diagonal and there's no problem reaching infinity focus. I've used mine with a Baader Hyperion 36mm for a whopping 6.5° field of view!
Last edited by MortonH; 10-05-2017 at 08:52 PM.
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