Sky-Watcher - Emerald 22mm 82° 2" Eyepiece - S51000

SKU
SKW-S51000
$310.00
Availability : Pre-Order
Free Shipping Available

The SkyWatcher Emerald 22mm 82° 2" eyepiece offers expansive, low-power views with excellent comfort and sharp optical performance.

Featuring 18mm eye relief and a wide field of view, it’s ideal for deep-sky observing and immersive night sky exploration.

Emerald 22mm 82° 2" Eyepiece

Ultra-Wide Field 2" Eyepiece for Expansive, Low-Power Deep-Sky Viewing

The Emerald 22mm 82° 2" Eyepiece is built for astronomers who want maximum sky coverage with exceptional clarity and comfort. Featuring a wide 82° apparent field of view and a longer 22mm focal length, this eyepiece is perfect for sweeping the Milky Way, framing large nebulae, and enjoying immersive, low-power views.

With its generous 18mm eye relief and precision 7-element optical design, the Emerald 22mm delivers bright, contrast-rich images with outstanding edge-to-edge performance, making it an essential addition to any deep-sky observing setup.

Key Features

Ultra-Wide 82° Field of View

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

22mm Focal Length for Maximum Sky Coverage

Ideal for low-power, wide-field observing, perfect for:

  • Large nebulae
  • Open star clusters
  • Sweeping star fields
  • Milky Way exploration

Precision Optical Design (7 Elements)

A sophisticated 7-element optical system delivers:

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

Generous 18mm Eye Relief

Designed for maximum comfort, especially for extended observing sessions and eyeglass wearers.

All-Metal Construction

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

2" Barrel with Filter Threads

  • Standard 2-inch compatibility
  • Threaded for use with 2" filters for enhanced viewing

Included Protective Carry Case

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

Technical Specifications

  • Focal Length: 22mm
  • Barrel Size: 2"
  • Apparent Field of View: 82°
  • Eye Relief: 18mm
  • Optical Design: 7 elements
  • Filter Threads: Yes (2")
  • Construction: All-metal housing

Performance in the Field

The Emerald 22mm is optimized for wide-field deep-sky performance, offering:

  • Bright, expansive views of large celestial objects
  • Comfortable, relaxed observing
  • Easy object acquisition and tracking
  • Excellent performance in fast and slow telescopes alike

Best For: 

  • Wide-field deep-sky observing
  • Milky Way scanning
  • Large nebulae and star clusters
  • Dobsonian, SCT, and refractor telescopes with 2" focusers

Why Choose the Emerald 22mm 82° Eyepiece?

The Emerald 22mm delivers maximum immersion and comfort, making it the go-to eyepiece for low-power observing. With its wide field, long eye relief, and sharp optics, it provides a viewing experience that feels natural, expansive, and highly detailed.

More Information

More Information
Brand Sky-Watcher USA
Free Shipping Free Shipping Available
Focal Length 22mm
Apparent Field of View 82 Degrees
Eye Relief 18mm
Parfocal Yes
Optical Coatings Fully Multi-Coated
Lens Elements 7
Warranty 2 Year
In The Box
  • 22mm Emerald Eyepiece
  • Carry Case with Strap

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