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Tele Vue Ethos Eyepieces

Tele Vue Ethos Eyepieces Lifetime Warranty

Tele Vue Ethos 100° & 110° Apparent Field Eyepieces. The Tele Vue philosophy (Ethos, if you will) has always been about inspiring "spacewalk" vistas. Now Tele Vue brings you the world's first fully-corrected 100° astronomical eyepiece!

Tele Vue is known for its in-house eyepiece and telescope designs by Al Nagler; their latest eyepieces bring new meaning to the term "in-house." The concept for this eyepiece series was proposed by Tele Vue President David Nagler, with performance parameters giving it the fundamental characteristics (the ethos) of a Tele Vue eyepiece: high contrast, comfortable eye relief and full field sharpness. Control of astigmatism, field curvature, lateral color, angular magnification distortion correction, and low pupil sensitivity for daytime use were specified criteria.

9 Items
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Tele Vue Ethos 21mm Eyepiece
Tele Vue Ethos 21mm Eyepiece
£879.00
Tele Vue Ethos 17mm Eyepiece
Tele Vue Ethos 17mm Eyepiece
£783.00
Tele Vue Ethos 13mm Eyepiece
Tele Vue Ethos 13mm Eyepiece
£647.00
£659.00
Tele Vue Ethos 10mm Eyepeice
Tele Vue Ethos 10mm Eyepeice
£647.00
£659.00
Tele Vue Ethos 8mm Eyepiece
Tele Vue Ethos 8mm Eyepiece
£609.00
£659.00
Tele Vue Ethos 6mm Eyepiece
Tele Vue Ethos 6mm Eyepiece
£609.00
£659.00
Tele Vue Ethos 4.7mm Eyepiece
£647.00
Tele Vue Ethos 3.7mm Eyepiece
£647.00
Tele Vue Ethos and Delos Eyepiece Carry Bag
£175.00
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Tele Vue Ethos Eyepieces 100° and 110° Apparent Field 

Following Tele Vue's philosophy of pushing the state of the art, long-time Tele Vue employee and optical design protégé Paul Dellechiaie took up the challenge and designed the basic eyepiece form. Under Al's guidance, Paul tweaked his design to fulfill the original goals.

While sharpness is inherent to the optical design, contrast is maximized through the intelligent use of flat finished baffles and ultra low reflectance, high efficiency coatings tuned to the composition of each element.

Tele Vue Ethos Eyepieces Dioptrx CompatibleIntroduced at the 2007 Northeast Astronomy Forum, Tele Vue once again broadened the amateur astronomer's perspective on the universe with: 100° of pure Tele Vue quality. The field area of this new eyepiece is more than 50% larger than an 82° field. The Tele Vue Ethos is essentially multiple eyepieces, delivering the true field size of a longer focal length, narrower apparent field eyepiece with the benefits of higher power and darker sky background.

 TypeModelFocal Length
(mm)
Barrel Size
(in.)
Apparent Field
of View
(deg.)
Eye Relief
(mm)
Weight 
(lb / oz)
 Ethos ETH-03.73.7 2" & 1¼"11015  1.10 / 17.6
 Ethos ETH-04.74.7 2" & 1¼"11015  1.30 / 20.8
 Ethos ETH-06.06 2" & 1¼"10015 0.97 / 15.5
 Ethos ETH-08.08 2" & 1¼"10015 0.95 / 15.2
 Ethos ETH-10.010 2" & 1¼"10015 1.10 / 17.6
 Ethos ETH-13.013 2" & 1¼"10015 1.30 / 20.8
 Ethos ETH-17.017 2"10015 1.55 / 24.8
 Ethos ETH-21.021 2"10015  2.25 / 36.0