I used a meade x2 barlow with the lx90 . I believe from a sky and telescope review some years ago that they tested them at x1.74. That would make the f number F17.4 . Im also using an LPI which produces an image smaller than a Toucams. I captured and processed them as BMP 's to prevent "lossiness " i hope? The picture certainly looks better than those i've taken using jpeg format. If i get a better one from the other images i will post it.
philip
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