Mike
Thanks for that. I am a bit wary of buying the DMK and filters to find that they throw everything else out. I can't figure out how anyone could have an arrangement where both the DMK + filter wheel and the eyepieces could be focused on a standard focuser. I have a Feathertouch (2020BCR) 2" and need all the travel with a CCD (at one end) and the eypieces at the other. Do people use an extension tube to move the eyepieces out when they add in a filter wheel or just live with not being able to do both or have more focuser travel?
regards
David
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