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Equipment Discussions >> Binoculars

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Gordon Rayner
professor emeritus


Reged: 03/24/07
Posts: 506
Do binoculars magnetically degrade SkyScout?
      #2617563 - 09/01/08 06:14 PM

There is discussion in the Celestron SkyScout website of "metal" interfering with the SkyScout GPS and magnetic sky guider. My mounts use aluminum and 18-8 stainless steel non-magnetic fasteners, and some binoculars, notably high quality ones for marine use, use non-magnetic fasteners( mostly as a coincidence, because the non-magnetic types are much more corrosion resistant).

But would cost-cutting on what were advertised as marine use binoculars, for example, the Takahashi 22 x 60 Astronomer with the obvious Katsuma 7 x 50 marine use body,( a poor copy of the WW II B&L MK.28, which used non-magnetic fasteners and no blobs of glue to locate the prisms), which I know to have magnetic steel fasteners, from experience with the Tasco U.S.M.C., Swift, Baker, etc 7 x 50 from Katsuma, or the Kamakura Koki 7 x 50 sold by Fujinon, or the many Chinese products(are their fasteners magnetic? I have no internal experience with those yet) interfere with SkyScout?

Could one use wires and batteries to de-Gauss binoculars, if required, following Navy practice to protect ships from magnetic mines?

Has anyone successfully used a SkyScout mounted close to a binocular known or suspected to have magnetic fasteners ? Or connected rigidly, but perhaps half a meter distant? Is there an easily constructed magnetic shielding analogous to the Faraday cage for electric fields?


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