Tele Vue 21mm Ethos Telescope Eyepiece - 2" - ETH-210

4.9 Stars

51 Ratings

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Tele Vue 21mm Ethos Telescope Eyepiece - 2" - ETH-210 has a rating of 4.9 stars based on 51 reviews.

Item #TELV-ETH-210

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  • This Tele Vue 21mm 2" Ethos Eyepiece offers an incredible 100 degree apparent field of view and a comfortable 15mm of eye relief
  • Provides breathtaking edge-to-edge views
  • Field area is 50% larger when compared to 82º eyepieces such as the Nagler
  • TeleVue Ethos eyepieces, which have won many awards, enable that "spacewalk" experience when using them to view the night sky
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  • Description

    Tele Vue 2" 21mm Ethos Telescope Eyepiece

    As soon as you were starting to think TeleVue couldn't possibly make any enhancements to their eyepieces, they introduce the Ethos line with their spectacular 100-degree apparent field of view! Together with a good telescope, this 21mm Ethos eyepiece enables views that are as close as can be to the views astronauts must have seen when peering out the window of their spacecraft. As this eyepiece allows for such broad views, even the eyepiece itself disappears from sight, leaving nothing but a dark, starry skyscape and the object you want to view.

    The apparent field of view of the 21 mm Ethos is 50% larger than the 82-degree Nagler!

    All of the high-quality features you've come to expect from quality TeleVue eyepieces are here in the Ethos, including sharpness across the entire field, high contrast views, and superb control over aberrations such as astigmatism, field curvature, lateral color, angular magnification distortion, and low pupil sensitivity for daytime use. As with all Tele Vue eyepieces, you'll enjoy a threaded eyepiece barrel, rubberized no-slip grip, rubber eyecup to cushion the view, 100% quality control, and a limited lifetime warranty.

    Tele Vue 21mm Ethos Eyepiece Specifications

    Focal Length: 21mm
    Apparent Field: 100º
    Barrel Size: 2"
    Field Stop: 36.2mm
    Eye Relief: 15mm
    Dioptrx Compatible: Yes
    Weight: 36 oz.

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    What's Included

    • Tele Vue 21mm Ethos Telescope Eyepiece
    • Rubber Eyecups
    • Dust Caps

  • Dimensions & Specifications

    • Focal Length: 17mm
    • Apparent Field of View: 100º
    • Barrel Size: 2"
    • Field Stop Diameter: 29.6mm
    • Eye Relief: 15mm
    • Dioptrx Compatible: Yes
    • Weight: 24.8 oz.

  • Product Guarantee

    We stand behind all the products we sell, and your satisfaction is our top priority. If you're not satisfied with the quality of your purchase, simply send the item back to us in its original packaging within 30 days of its delivery.

    Manufacturer Warranty

    Lifetime Limited Warranty

    Return & Exchange Policy

    At our site, returns are easy! You may return new, unused, and resalable items for a refund or exchange. Simply ensure that the item is returned in its original product packaging within 30 days of delivery.

  • 4.9 Stars

    51 Reviews

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