The EMERALD series eyepieces are composed of 7 lenses. The 82-degree field of view design provides a wide field of view and stronger contrast for the eyepieces.
All the lenses are coated with broadband anti-reflection film.
The entire mechanism is precisely processed by CNC and has a very attractive appearance.

SPECIFICATION：

Focal Length (mm)：16
Barrel Size (in.)：2‘’
Apparent Field of View (deg.)：82
Eye Relief (mm)：14
Weight (g)：540