Quote:
Originally Posted by 5ash
Hi Brent ,
How far off axis can you go to maintain accurate guiding of your subject without 100% accurate polar alignment , I wonder? Looks like a cheap alternative to SW & vixen al/az guid mounts.
Regards philip
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You get field rotation about the guide star. How much (aka is it important) depends on the length of your subexposures, the accuracy of the polar alignment and the position in the sky of your image, so there is no quick answer.
Geoff