Shop by Brand
Shop by Price

Tele Vue Ethos 3.7mm Eyepiece

Tele Vue Ethos 3.7mm Eyepiece
Price:  £598.00(Inc. 20% VAT)

Product Code:  ETH-03.7
Brand:  TeleVue
Eyepiece Type:  Super-Wide Angle
Field of View:  110 degrees
Barrel Size:  1.25" and 2" Eyepiece



In stock, Shipped in 1-2 working days


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.


  • 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

Be the first to Write a Review for this item!


We are here to help

Facebook      Twitter      Instagram     Maps     Phone

Telephone: 01353 776199 or 07990 646466

2 Rosemary Lane, Sutton nr. Ely, Cambridgeshire, CB6 2NZ
Telephone Hours:  
Monday to Saturday - 10:00am-4:00pm
Our showroom is currently closed for visits until further notice.
We are closed on Bank Holidays. Online orders are despatched as normal.