Quote:
Originally Posted by LewisM
a Lodestar through a PERFECT Takahashi finder (modified by me into a guidescope) solidly mounted on top (no flexure)
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Any flexure would come from the heavier scope moving in the rings while the guider is fixed. Doesn't matter if the guider is rock solid, what you have to watch out for is flex in the heaviest parts. If the guider was mounted directly on the refractor tube (in the available shoe) and not separate rings it would be best.