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Thread: Burce Sayre Newtonian Binoculars on Sale

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    Default Burce Sayre Newtonian Binoculars on Sale



    I check Craigslist frequently for used telescopes (beginning to think I like collecting more than observing). I came across some Bruce Sayre Newtonian binoculars that are on sale from his estate. One is a 22" (https://sfbay.craigslist.org/eby/for...859751327.html) and the other a 14 1/4" (https://sfbay.craigslist.org/eby/for...859746165.html). Here is Bruce Sayre's description of the 22": An amateur binocular maker's Web site

    Unfortunately, I have neither the space nor the money for either of these. But after reading Bruce's explanation of the advantages of binoculars, I have to give a shoutout to Ozman13 for continuing to advocate binoculars as a must have for amateur astronomers. I'm now a convert and will start checking the used ads for a good pair of binoculars.
    Gene
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    Default Re: Burce Sayre Newtonian Binoculars on Sale

    Yup the coolness factor on those is pretty high. One day.

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    Default Re: Burce Sayre Newtonian Binoculars on Sale

    It will cost more than $15500 to get the thing up and running, but I thought that the price was very fair. Just what I need for my light polluted backyard! A way to geometrically magnify skyglow!
    mstar74 and jimminCT like this.
    Michael
    Obsession 18" f/4.2, Zhumell Z10 f/4.9, ES AR 152 refractor f/6.5, Celestron Skymaster 15x70's , Bushnell 10x50's
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    Imagination is more important than knowledge. Knowledge is Limited. Imagination Circles the World... A. Einstein


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    Default Re: Burce Sayre Newtonian Binoculars on Sale

    The price is fair based on the mirror area. A 20.15" mirror with bino-viewers is the same as 2 14 1/4 mirrors. Obsession charges about $9K for that so it's in par with the bino-scope. However collimating a bino-scope is far from trivial so I would take the bino-viewer solution with a single mirror any time over the bino-scope.

    At the RTMC I had the chance to look through a JMI bino-scope and I could not get it to collimate properly no matter what I tried with its sophisticated controls. There is no rational reason to use bino-scopes, a bino-viewer of a square-root-of-two larger mirror is a much simpler equivalent.
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    ... Henk. Telescopes: 6" Mak-Newt (Comet Hunter), ES ED127CF, ES ED80, Zhumell Z12, Coulter Odyssey 10, AT6RC, Venture RX-7, Celestron Skymaster 20x80, Mounts and tripod: Losmandy G11S, AVX, LXD55, Tiltall, Cameras: Fuji X-a1, Canon SX40, Xt, XSi, T6, ELPH 100HS, DIY: Dob and camera barndoor trackers, afocal adapter, Dob with foldable base and Az/Alt setting circles, Accessories: SSAG, Plossls, Barlows, Telrad, laser collimators (Seben LK1, Z12, Howie Glatter), Cheshire, 2 Orion RACIs 8x50, Software: DSS, ImageMagick, PHD, Nebulosity, Photo Gallery, Gimp, CHDK

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