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I appreciate all the info, even if it isn't all in agreement. It provides a great deal of food for throught. And, with such large sums involved it pays to be prudent before mortgaging one's life away! (I always thought it's interesting that the word "mortgage" contains the word death!) Anyway, I digress.
Am I wrong to think that every fast scope will have rather limited back focus? Should I worry that in some of these scopes it isn't possible to use both an Atlas + MMOG? I know that Mike uses the SX OAG but that is with a small camera. Just how feasable is it to guide through a guide scope at 1300-1500 mm? Reasonable? Then I may not need to guide if the MEII lives up to expectations....
I'm very intrigued by those designs that allow the scope to fuction both as fast and at longer FL too.
Peter
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