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Hi DSB,
My advice is: if you can find a 12 " solid tube SW980 dobsonian for $800, BUY IT!
By the way, where did you see it at that price? Coz I want one too.
I have heard rumours the collapsible ones may have issues with collimation (mirror alignment after extending / retracting) but this isnt confirmed.
Cheers
Chris
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