You searched for "naglar apparent field of view"

Nagler Type 7 eyepieces from Tele Vue Optics

Tele Vue has announced a new line of eyepieces called the Nagler Type 7 series. Tele Vue developed the Nagler Type 7 series as a natural extension of their limited edition Apollo 11 eyepiece, which had an 85° apparent field of view. The goal was to create a series that offers similar performance...