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sw 130 heritage
one other thing, picking up on another comment re the helical focusser.
I hit the threads of the focusser with WD40 and ran the focusser in and out a few times to coat the threads. Others elsewhere have suggested teflon tape, like plumbers use on tap threads. The focusser is pretty coarse but what do you expect for the price seeing as the optics are OK?
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