Ethos 17mm 100° Eyepiece
This item is out of stock but you can place an order now and we’ll ship when it becomes available.
Introduced at the 2007 Northeast Astronomy Forum (NEAF), Tele Vue once again broadened the amateur astronomer's perspective on the universe with: 100° of pure TeleVue quality. The field area of this eyepiece is more than 50% larger than the 82° field of the Nagler eyepiece design. 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.
The 17mm ETHOS is an ideal complement to the 31mm Nagler Type-5. They are parfocal (both have focus locations about 3/8" above shoulder) and the 31mm Nagler Type-5 has exactly twice the true field area.
|Focal Length (mm)||17|
|Barrel Size (in.)||2"|
|Apparent Field of View (deg.)||100|
|Eye Relief (mm)||15|
|Weight (lb / oz)||1.55 / 24.8|
|Field Stop (mm)||29.6|