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Message: <blockquote data-quote="RJM" data-source="post: 1836215" data-attributes="member: 66340">The Kowa 88x has a fixed focal length of ~510mm.  Thanks for that link. But easy DIY?  FWIW, the scope has threads around the eyepiece holder that others have used with collette-type DIY adapters to hold astro eyepieces. So no need to make an adapter to fit the complicated bayonette mount. The "gotcha" is finding eyepieces that can still focus throughout the near-infinity range. Many of the most digiscoping desirable astro eyepieces can't.  Hmm, or just get one of these, <a href="http://www.adorama.com/CZZEPSAD.html" target="_blank">http://www.adorama.com/CZZEPSAD.html</a> to use with the camera of your choice. With step up/down rings you might get it to work. The common problem is the precision needed to align the camera and minimize vignetting cannot be had with standard camera adapters. That is why camera makers like Nikon made custom digiscoping adapters.</blockquote>