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Tele Vue Ethos 3.7mm Eyepiece
Tele Vue Ethos 3.7mm Eyepiece

Tele Vue Ethos 3.7mm Eyepiece

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Low stock, Shipped in 1-2 working days
Product Code
Eyepiece Type
Super-Wide Angle
Field of View
110 degrees
Barrel Size
1.25" and 2" Eyepiece
Email us a question about this ProductTeleVue

With 110°, the Ethos-SX has 21% more AFOV area than the 100° Ethos design. This permits a nice 62% power increase from a 6mm Ethos, while retaining 68% of its TFOV. The 3.7mm actually has more TFOV than our 8mm Plossl, 6mm Radian, and 5mm Nagler Type-6!

In 1.25" mode, it is parfocal with the wide range of 1.25" Tele Vue Plossls, Panoptics, Radians, Naglers, Nagler Zooms, and 6mm and 8mm Ethos eyepieces. The screw-on 2" adapter (included) is designed to make it parfocal with 13mm and 10mm Ethos when they are used in their 2" modes.


Specifications: Tele Vue Ethos 3.7mm Eyepiece


  • Model #  -  ETH-03.7
  • Focal Length (mm)  -  3.7
  • Barrel Size (in.)  -  2" and 1.25"
  • Apparent Field of View (deg.)  -  110
  • Eye Relief (mm)  -  15
  • Weight (lb / oz)  -  1.10 / 17.6
  • Field Stop (mm)  -  7.04

What's in the Box

What's in the Box: Tele Vue Ethos 3.7mm Eyepiece

  • Tele Vue Ethos 3.7mm Eyepiece
  • Eye Lens Cap
  • Nosepiece Cover
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At The Widescreen Centre, we prioritize prompt order processing and dispatch. We strive to dispatch all orders on the same day or the next working day, depending on the time of your order. We hold extensive stocks to ensure that your items are ready for immediate despatch. Please note that the cut-off time for same-day dispatch is usually 1:30 p.m.

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