The Emerald 9mm 82° 1.25" Eyepiece delivers panoramic, immersive views with pinpoint precision, making it an essential upgrade for any serious observer. Designed with an ultra-wide 82° apparent field of view, this eyepiece transforms your observing experience—placing you inside the scene rather than looking at it.

Whether you're exploring dense star fields, tracking planets, or scanning deep-sky objects, the Emerald 9mm provides sharp, high-contrast views with excellent edge performance in a durable, field-ready design.

Enjoy a spacious, immersive viewing experience that makes it easier to track objects and take in more of the night sky at once.

Provides moderate magnification with a wide field, ideal for:

• Deep-sky exploration
• Large nebulae and galaxies
• Star fields and open clusters

A sophisticated 7-element optical system delivers:

• Sharp, well-corrected images
• Excellent contrast
• Minimal distortion across the field

Offers enhanced viewing comfort, making it easier to observe for extended periods—even for users who wear glasses.

Built with precision-machined metal housing for durability and long-term reliability in real-world observing conditions.

• Standard 2-inch format for wider true fields
• Threaded for compatibility with 2" astronomical filters

Comes with a custom-fit carrying case to protect your eyepiece from dust, moisture, and impact—perfect for travel to dark-sky sites.

• Focal Length: 16mm
• Barrel Size: 2"
• Apparent Field of View: 82°
• Eye Relief: 14mm
• Optical Design: 7 elements
• Filter Threads: Yes (2")
• Construction: All-metal housing

The Emerald 9mm eyepiece is designed to provide high-magnification performance without sacrificing field of view, offering:

• Crisp planetary detail
• Sharp lunar features
• Expansive views of star clusters
• Easy object tracking thanks to the wide field

Best For: 

• Deep-sky observing (nebulae, galaxies, star clusters)
• Wide-field scanning of the Milky Way
• Dobsonian, SCT, and refractor telescopes with 2" focusers
• Observers seeking immersive, low-to-mid power views

The Emerald 16mm 2" eyepiece provides the perfect combination of wide-field immersion, optical performance, and viewing comfort. Its longer focal length and generous eye relief make it an excellent choice for astronomers who want relaxed, expansive views without sacrificing detail.