Spectra 200 mm Cassegrain Telescope Objective Lens For Sale
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Spectra 200 mm Cassegrain Telescope Objective Lens:
$485
This "Spectra" cassegrain telescope objective lens, model CO-2000, is apparently in good condition. It was made by Photo Research, when it was a division of Kollmorgen Corp.. It is described on the Photo Research website as a lens with a focusing range of 30 ft. to infinity, with a Lens-To-Subject distance of at least 1,000 ft. It readily attaches to a PR-1980A Pritchard Photometer for night vision studies, etc. The lens diameter is 200 mm and it weighs ~10 lbs. It comes with a lens cover as shown. The shipping is free for US delivery.
