
Tele Vue 13mm Ethos Eyepiece - 1.25" & 2"
The Tele Vue 13 mm Ethos Eyepiece for both 1.25" and 2" barrels is part of the Ethos Series delivering a 100 degree field-of-view. At the 2007 Northeast Astronomy Forum in New York, Tele Vue introduced attendees to a new observing experience with personal views through the new Ethos. With a 13 mm focal length evoking the original 'Nagler' revolution, the field area of this new eyepiece is, at 100 degree, more than 50% larger than an 82 degree field. The Tele Vue 13 mm Ethos eyepiece 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. Tele Vue Optics is known for its in-house eyepiece and telescope designs by Al Nagler. Tele Vue's latest eyepiece brings new meaning to the term 'in-house.' The concept for the 13 mm Ethos eyepiece was first proposed by Tele Vue President David Nagler, with performance parameters giving it the fundamental characteristics (t