Welcome to OPT Telescopes!

My Cart

Your cart is empty

You have no items in your shopping cart.

Tele Vue 31mm Nagler Type 5 Eyepiece - 2"

Item # TE-EN5-31.0

Availability: In stock



Quick Overview

  • The Tele Vue 31mm Nagler Type 5 eyepiece has a 6-element design that opens the door to the largest possible true field in the Nagler eyepiece line.
  • This is a 2" barrel design with an 82 apparent field of view and 19mm of eye relief.
  • The Tele Vue 31mm Nagler Type 5 has blackened lens edges, anti-reflection threads and rubber eyeguards deliver maximum contrast.
  • 100% full field visual inspection with TeleVue flat-field test instruments guarantees performance.
Televue Nagler Type 5 EyepiecesTelevue Nagler Type 5 Eyepieces: With the 31mm, the 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 22mm 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", f/4.5 scope with a Paracorr will deliver a 1.5 degree field (3 Moon diameters), at 53x with a 6mm exit pupil. Use our eyepiece calculator to figure out what the 31mm will deliver on your scope.

SKU TE-EN5-31.0
Manufacturer Tele Vue
Optical Design Nagler
Barrel Size 2"
Warranty Lifetime Warranty
Eyepiece Field of View - Apparent 82ยบ
Eyepiece Focal Length 31mm
Eyepiece Eye Relief 19mm
Eyepiece Manufacturer Series Televue Nagler
Eyepiece Weight 2 lb. 3.2 oz.
Field Stop 42mm
Number of Lens Elements & Groups 7 elements
Special Feature None
Comes with Dust Caps? Yes
Comes with Case? No
Comes with Eye Guard? Yes
  • Televue 31mm Nagler Type 5 Eyepiece - 2"
  • Dust Caps

Website Design by GammaFX, Design Studio Web Design Studio