Quote:
Originally Posted by Atmos
The ONLY issue(?) that I have found so far is that when the draw tube is extended past 70-80mm while being pointed at zenith with 1kg+ on it, it doesn't pull it back in without a bit of external pressure (helping it up).
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There should be an adjustment to increase the pressure on the focuser pinion/shaft - you could tighten it just a little to increase the lifting power of the focuser and minimise any lateral movement of the drawtube.
Is the scope an fpl53 triplet or fpl51 (or equivalent glass) triplet? No chromatic aberration around bright stars?