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Every once in a while you come across something really strange in the birding optics line. The Zuka Scope is a small (4 inch) Newtonian scope designed to be hand held. There is an extra prism in the external focusing mechanism that turns the image back along the long axis of the telescope. |
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Bausch and Lomb bills the 8080 as a telephoto lens/spotting scope. It is a modified Schmidt Cassegrain design with an 80mm main mirror, and multicoating on the corrector plate. |