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The Starlight Xpress Lodestar X2 and the Orion 60mm guidescope with helical focuser
Does anyone have experience of this combination of camera and guidescope? I have the Orion 60mm guidescope and like it very much, but when I use it with the ZWO ASI 290MM mini guide camera, the results (in terms of finding stars for Polar Alignment with SharpCap) are fickle. I can spend 15 - 20 minutes just trying to find stars (and focus them). Even binning 2x2 doesn't help. Yet on some nights, the stars magically appear in the field without too much of a problem, almost straight away.
Which brings me to the Lodestar X2. Is the Orion/Lodestar X2 a better combo? I understand that the Lodestar is impressively sensitive, but its backfocus is about 12.5 mm. The ZWO ASi290mm has a backfocus of 8.5mm. Is this likely to create a focus problem? The ZWO is already well back in the optical train with this guidescope; won't the extra 4mm push it back (out) even further? Perhaps beyond focus range?
Does anyone have any advice?
Cheers,
Richard
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