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)：9
• Barrel Size (in.)：1.25‘’
• Apparent Field of View (deg.)：82
• Eye Relief (mm)：8
• Weight (g)：165