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Thread: Eyepiece vs Eyesight?

  1. #1
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    Default Eyepiece vs Eyesight?



    In addition to wearing bifocals I have Stargardt's, a form of macular degeneration. Looking ahead, I wonder if I would benefit from gear with a 2" eyepiece vs 1.25".
    Any suggestions?
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    Default Re: Eyepiece vs Eyesight?

    I am not sure if they would benefit you but possibly using a binoviewer?
    Do you find the view through binoculars easier for viewing?
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    Amici prism, 2" Stellarvue Dielectric, 2" TeleVue Everbrite Eyepieces: A-Z

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    The weakest link in the optical chain is the large nut located directly behind the eyepiece/ camera. - Gabrielle
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    Default Re: Eyepiece vs Eyesight?

    Main benefit of 2" eyepieces is that they allow the designer to achieve wider field of view at low magnifications, since you can fit more of the image formed by the scope into a 2" barrel than you can in a 1.25" one.

    Optically, when the field of view will fit into a 1.25" barrel, there's no optical benefit from having a 2" one.
    Although you can get eyepieces that will fit into either a 2" or 1.25" focuser, they're a 1.25" design with a shorter 2" sized barrel or lower body. Only exception would be a 2" design with interchangeable 1.25"/2" barrels where the 1.25" barrel limits the AFOV.

    So unless having bigger eyepieces would help when changing eyepieces, it's unlikely to help in what you see.
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    Default Re: Eyepiece vs Eyesight?

    Check with local astronomy clubs if any of their members are Ophthalmologists or Optometrists. You need an evaluation to determine whether any equipment would benefit your optical conditions. These problems are regularly dealt with in the medical laboratory field where use of microscopes are necessary for individuals to remain employed.
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    Default Re: Eyepiece vs Eyesight?

    Quote Originally Posted by Gabby76 View Post
    I am not sure if they would benefit you but possibly using a binoviewer?
    Do you find the view through binoculars easier for viewing?
    A bit but that maybe just the wide FoV and general ease of use. When I only have a short break in the clouds, the scope isn't as practical.
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    Default Re: Eyepiece vs Eyesight?

    I was thinking a binoviewer or even a set of binoculars with changeable eyepieces may work a bit better for you than just changing eyepiece size.
    Refractors: Antares 105 f/15, Celestron 150 f/8, Stellarvue NHNG 80 f/6.9, TAL 100RS f/10, TS 102 f/11, UR 70 f/10, Vixen SD115s f/7.7
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    The weakest link in the optical chain is the large nut located directly behind the eyepiece/ camera. - Gabrielle
    Ya gotta keep this Apo/
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    thing in some balance of perspective. Apos are awesome, but long focus Achros aren't that far behind them - Siriusandthepup (CN)

    Refractors kick arse precisely because they don't hide behind excuses. That is, they have no obstructions to hide behind. - Jon Isaacs (CN)

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    Default Re: Eyepiece vs Eyesight?

    It might also be worth looking at a near real time video camera setup. A brighter image on a monitor that you can move your head around to get the bit you're looking at in the best position for viewing might make things easier.
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