Tele Vue 31mm Nagler Type 5 Eyepiece - 2" - EN5-310

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Item #TELV-EN5-310

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  • This 31mm Nagler Type 5 eyepiece from Tele Vue is made to provide the largest true field of any eyepiece with an 82 degree apparent field of view
  • Long 19mm eye relief makes this eyepiece Dioptrx compatible
  • Features include blackened lens edges, anti-reflection threads for accepting filters, and a quality rubber eyecup
  • 6-element design in a 2" barrel size
  • Individually tested with a limited lifetime guarantee
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  • Description

    Tele Vue Nagler Eyepieces

    For amateur astronomers all over the globe, TeleVue Nagler eyepieces are a massive hit. They all contain a large 82º apparent field of view, comfortable eye relief, and razor sharp optics. With these features, it's easy to see why Al Nagler's "Space Walk" eyepieces are counted among the most highly coveted telescope accessories of all time.

    To see the relative size difference between 50 degree and 82 degree eyepieces, lay a penny and a half dollar down on the table side by side. The difference is huge - the half dollar is almost three times the area of the penny! Al Nagler wanted to give his customers an experience that would be similar to looking at an object with the naked eye, except with a lot more magnification, and the 82 degree Naglers definitely hit the mark. After awhile, you will forget that you're looking through an eyepiece at all you'll be so fully immersed in the experience.

    All Nagler eyepieces have blackened lens edges, anti-reflection threads and rubber eye guards for maximum contrast. Innovative features, such as adapter skirts for 2” focusers on larger 1.25” models and rubber grip rings were invented by Tele Vue. A 100% full field visual inspection on Tele Vue’s flat-field test instruments guarantees the performance of every Nagler eyepiece.

    Tele Vue 31mm Type 5 Nagler Eyepiece

    Nagler Type 5 eyepieces are designed for the purpose of allowing the biggest possible true field for an eyepiece with an 82 degree apparent field of view. Boasting a unique 6-element design using four exotic glasses, the 31mm Nagler Type 5 preserves the contrast enhancement achieved by the Type 4 while offering a true field area 82% larger than the 22mm Type 4! Fast Dobsonian and Newtonian users will enjoy a larger true field than they've ever experienced with no secondary shadowing.


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    Shipping Restrictions

    Only ships in contiguous USA.

    What's Included

    • Tele Vue 31mm Nagler Type 5 Eyepiece - 2"
    • Rubber Eyecup
    • Dust Cap

  • Dimensions & Specifications

    • Focal Length: 31mm
    • Barrel Size: 2”
    • Apparent Field of View: 82º
    • Eye Relief: 19mm
    • Weight: 2.2 lbs.
    • Field Stop: 42mm
    • Dioptrx Compatible: Yes

  • 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.

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