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Byron Davies

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Wollensak objective lens F=1200mm, D=127mm

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Selling my Wollensak objective lens F=1200mm, D=127mm doublet lens.

I made a refractor out of it, which I used so a couple years, but I have since moved to a  triplet with field flattener.

The lens is pristine, but there a a few cosmetic scratches on the aluminum cell.

I have a webpage describing the refractor, PM for it (it is against Astromart rules to put url in an add).

I am selling for half the original price.

The circular reflections on the pics are from my circular led lamp.

Here is what SurplusShed, the US vendor of this lens says: "Glass, air-spaced achromatic optics, multi-coated! 127mm clear diameter with a focal length of 1200mm making this an f/9.4. The aluminum barrel has a diameter of 145mm (OD), 46mm thick, and an ID of 135mm. The lenses can be easily removed (if needed) by unscrewing the retaining ring. An incredible price that may not last long!! NEW! Edmunds sells a similar one for over $1000. This is the objective you need for a quality refractor scope or an awesome binocular telescope. Wollensak brand, Quality optics since 1899."