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Thank all for the info. I am currently using an old equtorial pier mount with a 8" f6 primary (it could easily carry a 16' newtonian ota if I could find one) I have recently refurbished it with a coultar optical mirror set 1/8 wave and the images look pin sharp. It seems to me that fast optics are pre-requisite to avoid digital noise. My ideal choice would be a 12" f6 newtonian ota but I would need a bigger car or a dome. Large non dob newtonians seem to be hard to find.
Last edited by doppler; 18-12-2012 at 08:50 AM.
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