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AO devices
Im half considering going the AO route rather than a better mount for longer focal length imaging (or better guiding than I have anyway).
I have an AO7, but despite is raw speed, its just too difficult to use, and its image path is too long for a guiding-before-the-filters set up.
Im thinking an OPTEC motorised Pixus rotator (a rotator is critical IMO, its just too hard and disruptive rotating manually), an AO8 and an Astrodon MOAG, in which the SBIG external guider would go.
Its all fairly expensive unforch, but for AO imaging with 3nm Ha, guiding before the filter is necessary.
I cant recall anyone here with that set up, but some use the AO8 I think, how do you find it?.
Im fairly keen to find a cheaper way, I even thought the Meade derotator might do as a rotator, but I suspect it cant handle the cam/filter/AO8 weight.
Anyone with experience with before-the-filters AO with other ideas?.
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