Tele Vue Ethos 21mm Eyepiece (2")

Tele Vue Ethos 21mm Eyepiece (2")

Tele Vue Ethos 21mm Eyepiece (2")

B&H # TEEP21E MFR # ETH-21.0
Tele Vue Ethos 21mm Eyepiece (2")

Show MoreLess


Now Viewing:

In Stock
Order in the next 0:00:00 to ship today

Product Highlights

  • Barrel size: 2.0"
  • 100° AFOV
$0.00 Tax Collected Outside NY and NJ

You Pay: $830.00

Add to Wish List Item in Wish List
  • 1Description

With its 100° on-axis FOV, the 2" diameter barrel Ethos 21mm Eyepiece from Tele Vue puts you deep 'inside' the 'final-frontier'. Intimate views of larger deep-sky objects and lush star fields are now a possibility. The Ethos eyepiece offers an extremely dimensional viewing experience that's sharp from edge-to-edge, and rich with detail revealing clarity.

The optical performance of the Ethos 21mm features an enhanced level of aberration correction along with technologically-advanced coating techniques and materials. The resulting increase in contrast and light-transmission is enhanced further by the Ethos' superior optical formula and internal mechanical design. This remarkable ocular extends the FOV to the limits of the 2.0" diameter barrel, yet it is free from significant vignetting.

The Ethos 21mm is a logical choice for owners of the 8mm and 13mm eyepieces. It also fits nicely into a 6/10/17mm set. The addition of the 21mm focal length into either line-up offers a 3.0x field area gain.

Eye relief: 15 mm
Parfocal with the 31 mm Nagler type 5
Effective field-stop diameter: 36.2 mm
Accepts Dioptrix astigmatism correctors
Table of Contents
  • 1Description
Focal Length 21 mm
Barrel Diameter 2.0"
Eye Relief 15 mm
Field Stop Diameter 36.2 mm
Apparent Field of View 100°
Dimensions Not specified by manufacturer
Weight 35.2 oz / 2.2 lb / 998 g
Packaging Info
Package Weight 3.0 lb
Box Dimensions (LxWxH) 8.3 x 4.3 x 4.25"
Be the first to review this item
See any errors on this page? Let us know.