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I would largely agree with David, but the 10" Dob base is somewhat
bulkier and taller, and has to be put into my hatchback on it's side, and then turned upright, where it just clears the roof. The 10" collapsible tube weighs 14.5kg against the 8"at approx. 10kg. I am getting on in years, and the 10" is the most that I could handle.
On the light gathering ability, for those not of a mathematical bent,
I find it easier to just square the scope diameter in inches so a 6"
inch scope would be 36, an 8" 64, a 10" 100, a 12" 144, and so on.
raymo
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