William Optics 2" XWA 100° Extreme Wide Angle Eyepiece - 20mm

Our Price: $289.00
Free shipping for this item in the US Click here for more info

Continental US Customers:
All items we sell ship for free within the Continental US. Shipping will be via the cheapest shipping method which will vary depending on the items in your order. During checkout, you may also be shown other optional faster shipping choices.

US Customers in Hawaii and Alaska:
Free shipping applies to almost all products. A few large telescopes and mounts are excluded from this free shipping offer. For these items, please contact us to obtain a shipping quote before you check out using the online shopping cart.

International Customers:
Free shipping does not apply to international orders. During check-out, you will be presented with several shipping choices and costs. However, the export of some items may be restricted outside the US due to size or manufacturer restrictions.

In stock (1 Available)
Ships by Next Business Day
Our Product ID: E-WO-XWA20
Manufacturer SKU: E-XWA20
Item Can Ship: Worldwide
William Optics 2" XWA Extreme Wide Angle Eyepiece - 20mm

More Views

  • William Optics 2" XWA Extreme Wide Angle Eyepiece - 20mm
  • William Optics 2" XWA Extreme Wide Angle Eyepiece - 20mm

Website Special - FREE Agena plastic bolt case / storage container included with this eyepiece (a $9.50 value)!

Product Details

New from William Optics

  • William Optics 20mm 100-deg Extreme Wide Angle (XWA) eyepiece
  • 2" barrel format
  • Comfortable 15mm eye relief
  • Twist-up eyecup
  • Fully multi-coated optics (9 elements in 6 groups) with blackened lens edges
  • Made in Taiwan from Taiwanese, Chinese, and Japanese components


  • Weight: 
    • 2" eyepiece: 1lb-14.1oz
  • Height:
    • 2" eyepiece (with eyeguard recessed): 152.3mm (6.0")
    • Eyeguard can extend by: 7.5mm (0.3")
  • Maximum width (excluding end caps): 74.5mm (2.91")
Eyepiece Series XWA Series
Focal Length 20mm
Barrel Size 2" (50.8mm)
Apparent Field of View (Mfg Specified) 100°
Eye Relief (Designed) 15mm
Filter Threads Standard 2" Filter Thread (M48 x 0.75)
Coatings Fully Multi-Coated
Lens Elements 9
Lens Groups 6
Blackened Lens Edges Yes
Barrel Safety Recess Yes
Barrel Type With safety undercut
Protective Plastic Storage Container Yes - Free Agena Eyepiece Container
Protective Plastic Storage Container Size Agena 85x120mm
Height (With Eyeguard Extended) See item description
Maximum Width 74.5mm
End Caps 2
Rubber Eye Guard Twist-up Eyecup
Weight 1lb-14.1oz
Country of Manufacture Taiwan

Product Questions & Answers

No questions yet. Be the first to Ask a Question.