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Thread: Solar Eclipse Glasses

  1. #1
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    Solar Eclipse Glasses

    It's never too early to buy some, I suppose.

    Amazon is awash in inexpensive glasses, supposedly "CE and ISO" certified. Ehhh....

    On the Orion Telescopes site I'm tempted by a pair of filters that would fit over the objectives of binoculars but not sure I would get much use from them after the eclipse.

    Short of buying a scope, any recommendations from the CQ universe?

  2. #2
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    The binocular filters willo allow you to track sunspots. I have always found that fascinating.

  3. #3
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    Quote Originally Posted by John Mendenhall View Post
    The binocular filters willo allow you to track sunspots. I have always found that fascinating.
    Whoops on my part. On a closer look the filters are designed to fit an 80mm objective. Guess that means I need to buy a new set of binocs!

    In any event I had been thinking of buying an inexpensive solar filter (made with Baader solar film) for my 10-inch Dob and the Orion site also offered a five-pack of cheap solar eclipse glasses ($12.95). So I reckoned they would be a fairly safe bet. I'm not expecting much but the glasses only need to work during the eclipse for an hour or two for myself and others hanging out with us.

    I'll report back when the kit arrives.
    Last edited by schlaugh; 2017-Apr-10 at 07:10 PM. Reason: eclipse

  4. #4
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    #14 welder's filter.

  5. #5
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    Quote Originally Posted by Noisy Rhysling View Post
    #14 welder's filter.
    Now why would a sightless, itinerant troubadour need welder's glasses?

    But it's a good suggestion. I just wouldn't have any need for their original purpose.

  6. #6
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    The BA, in his new blog, has a review of Celestron solar binoculars. Sounds interesting, and not excessively expensive. Very much a single-purpose item, of course.

    Meanwhile, I already bought some eclipse glasses through Amazon. Now if I only remembered where I put them....
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  7. #7
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    Quote Originally Posted by John Mendenhall View Post
    The binocular filters willo allow you to track sunspots. I have always found that fascinating.
    Oh. wow. This was something i had no clue of! I must be sleeping. Thank you for sharing this, i honestly had no clue that you could in some way track sunspots.

  8. #8
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    I tried out my eclipse glasses yesterday. They work, but dang, the sun looks small. I'm going to look into the binocs.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  9. #9
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    Quote Originally Posted by Trebuchet View Post
    I'm going to look into the binocs.
    And a thousand people will post "No, don't do that!!!"

  10. #10
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    Quote Originally Posted by schlaugh View Post
    In any event I had been thinking of buying an inexpensive solar filter (made with Baader solar film) for my 10-inch Dob and the Orion site also offered a five-pack of cheap solar eclipse glasses ($12.95). So I reckoned they would be a fairly safe bet. I'm not expecting much but the glasses only need to work during the eclipse for an hour or two for myself and others hanging out with us. I'll report back when the kit arrives.
    Well the eclipse glasses work just fine. I had forgotten just how small an apparent image the sun and moon have at one-half degree. I'll try the dob filter this weekend. Unfortunately sunspot activity is almost nil as we're near the bottom of the 11-year cycle. From Wikipedia on Sunspot Cycle 24:

    As of April 14 there had been 28 days during 2017 on which there were no sunspots.

  11. #11
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    This isn't related to safe solar observing but the Postal Service is coming out with a new stamp to commemorate the upcoming total solar eclipse. It's a heat sensitive postage stamp that turns from the eclipse to a full moon when pressure from one's thumb is applied to it. I'm stocking up ;-)

    https://phys.org/news/2017-04-presto...ipse-moon.html

  12. #12
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    Any astronomy magazines think to have them as inserts? A bit late to ask.... I've been working seven days a week and haven't checked bookstores

  13. #13
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    Quote Originally Posted by Noisy Rhysling View Post
    #14 welder's filter.
    #14 welder's glass is fine for simply looking at the Sun unmagnified, but it doesn't magnify well. So if you use it with binoculars or telescopes, you get a distorted image.

    I ordered 2 square feet of solar filter paper from Thousand Oaks Optical. Now I can make hundreds of cardboard glasses.
    I used a 3d printer to make binocular lens covers with an opening for the solar paper. It's for a 10x50 Meade. If anyone wants the stl file so you can print your own, let me know.

    The trouble with observing the partial phases is that you should be dark-adapting your eyes so you can see finer details during totality. So I've been considering getting some large dark sunglasses and fixing some solar filter paper to the tops, kinda like bi-focals. That way I can dark adapt and still walk around without tripping, and glance up at the partial phases.

  14. #14
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    Not binocs - SUNOCULARS. Fraser mentions a couple of times, most recently in AC #448. See https://luntsolarsystems.com/product...s-mini-yellow/

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