Sky-Watcher 82° EMERALD 22mm, 16mm, 9mm Eyepiece Series

• 12-, 16- & 9 mm focal length
• 82 degree wide-angle eyepiece
• 7-lens design
• 2" & 1.25-inch (9 mm) barrel with filter thread

Introducing the Sky-Watcher EMERALD 9mm (1.25"), 16mm (2") and 22mm (2") ultra wide-angle eyepieces, designed for astronomers who demand high contrast, extremely wide fields of view, and maximum clarity. These eyepieces feature a premium 7-element lens system, which provides a stunning 82° apparent field of view, perfect for deep sky exploration, lunar landscapes, and immersive planetary viewing.

All lenses are fully coated with advanced broadband anti-reflection coatings, ensuring superb light transmission, high contrast, and minimal internal reflections.

Precision-engineered using CNC technology, the EMERALD series boasts both optical performance and an elegant, robust build that stands out in any observing kit.

Whether you're scanning the Milky Way or resolving fine detail on the Moon, the Sky-Watcher EMERALD series eyepieces deliver uncompromised performance for all your visual astronomy needs.

Finished in durable, high-gloss anodized aluminum, with a threaded barrel to accept standard filter sizes.

Technical Data

• Focal Lengths/Barrel Sizes: 9mm (1.25"), 16mm (2") & 22mm (2")
• Apparent Field of View: 82° ultra-wide
• Eye Relief: 8mm (9mm Emerald), 14mm (16mm Emerald) & 18mm (22mm Emerald)
• Soft Rubber Eyecup for Comfortable Viewing
• Threaded Barrels for Standard Filter Sizes
• Optics: 7-element design with broadband anti-reflection coatings
• Blackened lens edges
• Construction: CNC-machined housing with attractive finish
• Weight: 165g (9mm Emerald), 540g (16mm Emerald) & 600g (22mm Emerald)