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    Default eyepiece for eclipse?



    I have a 60mm refractor (900 f) with sun screens that I'll use to view the eclipse. I'm wondering what eyepiece would be best. My choices; 20mm 32 deg, or 12.4mm 52 deg.

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    Default Re: eyepiece for eclipse?

    With the relatively long refractor, I would spring for a new EP. What brand and type is that 20mm 32 degree EP, that is very, very narrow. Have you looked at the sun with these EPs yet? Can you see the entire disc with a good clear area around it? You need to be practicing your observing skills on the sun now so you will be comfortable with it later when it really matters instead of trying to get accustomed to it then.

    You need to list your equipment in your signature so we all know what equipment you have and can make good recommendations and give good advise. This is done at upper right hand corner "SETTINGS" then lists on the left "EDIT SIGNATURE". Then you will not have to tell us every time what you are using.

    Assuming your scope has a 1.25" focuser, the widest field of view you can get from a very affordable EP is a 32mm plossl EP. For the widest premium view, you can get an ES 24mm 82 degree EP that is top of the line.

    For the best viewing of the eclipse you need to use your binoculars with filters. Don't have binoculars? GET SOME!!! EVERY astronomer NEEDS binoculars. They will show/teach you a TON of stuff, are the ultimate in portability, will be very useful no matter what scope/scopes you have, and are FUN!! After over 37 years in this hobby and owning many, many scopes they are my most used instrument by FAR!! You will want a wider view of the eclipse than your scope can provide anyway.

    https://www.harborfreight.com/10-x-5...ars-94527.html

    Buy some solar film (very affordable) and easily make your own filters. For about $30 you can have a great solar instrument and the binoculars are useful day or night and easily go anywhere with you.

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    Default Re: eyepiece for eclipse?

    just got done doing some testing. Looks like the 12.4mm 52 deg wins. I might buy a 26mm 52 deg before the eclipse tho.

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    Default Re: eyepiece for eclipse?

    Quote Originally Posted by meopilite View Post
    just got done doing some testing. Looks like the 12.4mm 52 deg wins. I might buy a 26mm 52 deg before the eclipse tho.
    That's a 26mm plossl. At the same price a 32mm plossl will give you a wider field of view.

    GSO 1.25" Plossl Eyepiece - 32mm

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    Default Re: eyepiece for eclipse?

    Quote Originally Posted by Ozman13 View Post
    That's a 26mm plossl. At the same price a 32mm plossl will give you a wider field of view.

    GSO 1.25" Plossl Eyepiece - 32mm
    What do you mean? Its a 12.4mm giving me about 73x magnification.

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    Default Re: eyepiece for eclipse?

    I mean, when you say you might get a 26mm plossl, the 32mm plossl will give you a wider view with less magnification than the 26mm plossl. For the eclipse you will want a wider view. The 32mm plossl will give you the widest view possible.

    When you say the 12.4mm plossl wins, what did you mean by winning? Was the view clearer than the 20mm 32 degree? Are you able to fit the entire disc of the sun with a substantial clear area around it in the field of view of either EP you currently have? When you view the eclipse you will want to see all of the sun AND the surrounding area to see the corona in one wide view. Of course the 12.4mm gives you more magnification than the 20mm, but does it allow you to see all of the sun and surrounding area better than the 20mm? The 32mm plossl WILL allow you to see more area than the 12.4mm plossl, almost 3x as much area.

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