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ive got the same scope, and i was also thinking about replacing the tube with something longer to get rid of that barlow (before i knew the problems this would cause). but then i considered the size of the secondary mirror in a longer tube. being so much further above the primary, the secondary would be way too large and would need to be replaced with something smaller to get the most out of the scope.
is there any way of making use of the spherical mirror? is there something i could do with it, maybe not even astronomy related? its useless in this telescope but there would have to be a use for it somewhere else. even if its just for a bit of fun.
Jarrod.
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