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hi Duncan,
I've got a 12" GSO imaging newt and a 12" skywatcher goto dob. The GSO must have the springs replaced the standard ones do nothing.
My view is the skywatcher has an all round better quality finish (no springs required for replacement), primary collimation knobs better and less flimsy spider vane. still need to replace secondary collimation screws. These things of course can be 'fixed' on the GSO.
Cheers
Russ
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