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You don't have to do it each time with a Skywatcher Flex Tube , they hold
collimation very well indeed; my 8 and 10" ones are far better in that
regard than my friend's Lightbridge 10".
The advantage being that there is no assembly to do, they just slide on very
solid tubes that are accurately adjusted.
raymo
Last edited by raymo; 25-04-2014 at 12:05 PM.
Reason: more info
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