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Tele Vue 31mm Nagler Type 5 Eyepiece

SKU : TE-EN5-31.0

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Product Details

  • The 31 mm Tele Vue Nagler Type 5 Eyepiece with a 2-inch barrel is made with a unique 6-element design using four exotic glasses, maintains the contrast advancement of the Type 4s while achieving a true field area 82% larger than the 22 mm Type 4! Owners of fast Dobsonian/Newtonians can enjoy a larger true field, free of secondary shadowing, than ever before. For example, a 12.5 inch, f/4.5 scope with a Paracorr will deliver a 1.5 degree field (3 Moon diameters), at 53x with a 6 mm exit pupil.  

     

    Tele Vue Nagler Eyepieces

    "You may know there's a long history of naming eyepieces after their designers: Kellner, Erfle and Plossl, to name a few. In the late '70s I designed an eyepiece sufficiently radical that I dared attach my name to it. Even today, I must admit a little discomfort when talking about 'Nagler' eyepieces. 


    With 'Naglers,' my aim is to approach the wide angle perspective of naked eye vision, while maintaining the highest degree of sharpness, contrast, and viewing comfort. The goal is to allow the telescope to virtually 'disappear,' leaving the impact of 'spacewalk' viewing."
     -Al Nagler 


    Compare a penny to a half dollar to see the relative size between a 50 degree and 82 degree apparent field - almost 3 times the area difference!  Blackened lens edges, anti-reflection threads, and rubber eyeguards deliver maximum contrast. Adapter skirts for 2 inch focusers on larger 1.25 inch models (12 mm Nagler Type 4 and 22 mm Panoptic) and rubber grip rings are additional Tele Vue "firsts". Even 2 inch/1.25 inch barrel models have an additional feature allowing the 2 inch extension tube (EBX-2120) to be screwed on, which permits use of 2 inch filters as well as 1.25 inch. 100% full field visual inspection on our own flat-field test instruments guarantees the performance of every Tele Vue eyepiece.

     

    OPT Product Number: TE-EN5-31.0

     

  • specifications

    Dust Caps IncludedYes
    Eye Guard IncludedYes
    Eye Relief19mm
    Field of View82 degrees
    Field Stop42mm
    Focal Length31mm
    Free ShippingYes
    Size2"
    WarrantyLifetime Warranty

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5.0 Based on 2 Reviews
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Filter Reviews:
    A
    01/06/2021
    Anonymous
    United States United States
    Nagler 31mm Type 5

    Delivery was ahead of schedule. Service was fine taking my order. The quality of the product was excellent.

    GC
    09/01/2020
    Gary C.
    United States United States
    Great eyepiece

    Saw our first nebula a great expérience