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I have had extensive experience with SW dobs, both collapsible and solid,
and can safely say that the collapsibles hold collimation as well as the
solid tubes do; seems counter-intuitive, but the collapsing mechanism is
built like a brick outhouse. There is the added benefit [that I'm getting
tired of pointing out] of being able to use SW dobs for prime focus imaging,
which most other dobs/newts don't allow.
raymo
Last edited by raymo; 25-04-2016 at 07:19 PM.
Reason: correction
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