Thanks for the reply Malcolm, and I imagine you are right with the Logitech, but it would surprise me with the Acuter, as it is made for
planetary and lunar work, and worked o.k. on Saturn when I last used
it a couple of years ago. [I realise that Saturn is not as bright as Jupiter]
What surprised me was if I lowered the controls to the point that the
disc was so dim that it was only just visible, it was still a perfect
monochrome disc with no sign of features.
raymo
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