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Home > Classifieds > Astromart Classifieds > Telescope Making > Classified #245996

For Sale: 17 1/2 inch f4.25 Mirror with diagonal/mount/spider - SOLD

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For sale (as a set only):
17 1/2 inch f4.25 Newtownian (parabolic) mirror, 1.5 inches thick
Matching Novak mirror mount (9 point flotation)
4 inch minor axis elliptical diagonal mirror
Matching Novak diagonal holder and spider
2 inch rack and pinion focuser

I purchased the 17 1/2 inch Newtonian (parabolic) mirror and matching
diagonal from Coulter optics in the early '80s. They have been in
indoor storage since then. The mechanical parts were purchased at
the same time. Both the mirror mount and spider are for a 20" ID tube.

The coating on the mirrors is original. The coating on the 17 1/2 inch
mirror appears to still be pretty good, only a few minor pinholes. The
coating on the 4 inch diagonal has deteriorated beyond usefulness, and
it will have to be recoated before use.

Am asking $950 for all of these items, which includes UPS Ground shipping within the U.S. lower 48. Accept PayPal, Checks, or Money Orders.

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