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Oh and on portability. I have recently acquired a HEQ5 mount and a 6" RC scope for imaging. Setting up a 8" or 10" dob is much simpler as it only takes 2 trips to the backyard (one for base, one for the scope, assuming it is a solid tube) while the EQ setup takes 3 for the tripod, then the head then the scope. Also a dob can be easily repositioned and if it is a go to it is a simple 2 star alignment and you are good to go. Reposition the EQ and you have to do a fresh polar alignment and then do your 2 star alignment.
And on the Orion Go To dobs, I believe they are designed so the bases can be pulled apart for car transport.
Malcolm
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