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Thread: Binoviewer for Outreach?

  1. #1
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    Default Binoviewer for Outreach?



    We were at an outreach event last night, when our Astro Soc were asked if we could help out at a local school's Space themed Science Evening.

    Our telescope was centred on M42 for the evening, and we had a stream of children (and a few of the parents) looking through the eyepiece.

    Although most of the children were good with viewing the nebula, there were a few (mostly younger) children who had problems seeing through the eyepiece. As I was standing behind them, it seemed to me that some of them were trying to look somehow sideways through the eyepiece.

    So, for outreach purposes, would a bino-viewer be worth considering?

    Secondary to this question is "do you need to shorten the optical path to use a binoviewer?"
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    Default Re: Binoviewer for Outreach?

    Awesome Job Promoting Astronomy to the next Generation.

    I usually setup a ST 80 and a 100mm table dob for the old and young.
    As far as a Bino viewer I think any Short Tube will work.
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    Default Re: Binoviewer for Outreach?

    Having a 2" diagonal, 1.25" diagonal, 2x barlow, 1.6x OCA at hand I have never found a refractor I could not get binoviewers to work in.
    Occasionally you may have to figure out what combination will work.
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    Default Re: Binoviewer for Outreach?

    A C8 with a binoviewer, 2" diagonal and at least 18mm Orthos is wonderful especially on Planets. My favorite setup!
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    Default Re: Binoviewer for Outreach?

    Instead of just needing to focus one eye, viewers need to adjust IPD and both eyes. A small group of friends of mine are all experienced observers. When we observe through a refractor with bino viewer or the Takahashi TSA 240 (A binoscope made from 2xTSA120 refractors) Each observer has to spend a bit of time adjusting. We all know how to do that. At outreach, I think most people would end up with a substandard view.

    I think it would just slow things down not speed them up. Maybe just use an eyepiece with good 20mm of eye relief and a deep eyecup.

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  7. #6
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    Default Re: Binoviewer for Outreach?

    Quote Originally Posted by ozeclipse View Post
    Instead of just needing to focus one eye, viewers need to adjust IPD and both eyes. A small group of friends of mine are all experienced observers. When we observe through a refractor with bino viewer or the Takahashi TSA 240 (A binoscope made from 2xTSA120 refractors) Each observer has to spend a bit of time adjusting. We all know how to do that. At outreach, I think most people would end up with a substandard view.

    I think it would just slow things down not speed them up. Maybe just use an eyepiece with good 20mm of eye relief and a deep eyecup.

    Joe
    That's a very good point. Thanks.
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    Default Re: Binoviewer for Outreach?

    Hmmmm.... The club I belong to does a lot of outreach, 3 weekends/month April-October, plus schools, plus scouts, plus ad hoc requests. Younger children so often do exactly as you describe, hold their heads sideways. I'm wondering if a binoviewer with only one eyepiece might help, perhaps they would keep their heads in the straight on position. I'm picking up a binoviewer tomorrow and have a public event the following night, I'll see how it goes. With adults I'm usually using their cell phones for lunar/planetary photos, particularly at our most light-polluted location where the moon and planets are about all that is visible.

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