nagler

Nagler is a surname of German origin. The name is also associated with a line of optical products produced by Tele Vue Optics, most notably a family of wide-angle eyepieces used by amateur astronomers. The eyepieces bear the Nagler name and are linked to the company founder, Al Nagler.

Tele Vue's Nagler eyepieces were designed to provide very wide apparent fields of view, along with generous eye relief and sharp performance from center to edge across a range of focal lengths. They are available in 1.25-inch and 2-inch barrel formats and are favored for astronomy tasks that benefit from expansive star fields, such as deep-sky observations and scanning the Milky Way.

Over time the Nagler line was expanded and integrated with Tele Vue's broader lineup of wide-field optics, including the later Ethos family. The Nagler designation remains a benchmark for optical quality and design philosophy within Tele Vue’s products, and the line is widely used with both refracting and reflecting telescopes.

Beyond product branding, the surname Nagler appears in various fields and cultures. In the context of astronomy, however, it is most prominently tied to Tele Vue’s Nagler eyepieces, which helped popularize ultra-wide-field viewing among amateur observers and contributed to a standard of high-performance eyepieces in the field.