Quote:
Originally Posted by toryglen-boy
The logical part of me is saying i am already there, with a 10" borderline, and a 12" a no-no
any takers?

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I have a 12.5" F3.5 Newt with a "no mirror cell " conical mirror and lightweight aluminium tube on the drawing board. Intention will be an `astrograph' , using an MPCC that can function well on an EQ6pro out in the open. I think the GSO F5 tubes being long and heavy would function well only in an observatory.