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Home > Classifieds > Astromart Classifieds > Telescope - Refractor > Classified #104755

Sale/Trade: 6" D&G Objective Lens and Cell, F20

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This lens has a perfect star test at 400x. Standard coatings. 120" focal length assures very low color error, Jupiter is spectacular without the usual color fringe in lesser, faster instruments.

$900 for the lens and cell. I waited 10 months, but it was worth the wait. I now have a 8"F12 D&G and a TMB apochromat.

I also have available much of the components necessary to complete a folded version, 60" long newtonian-style "Fold-hoffer" (with 5" and 1.5" optical flats), and most of the pieces from the original straight tube design that dissassembled into two pieces. $200 for these components.

 

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