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William Optics 1.25" UWAN Series Eyepiece - 16mm

5.0 (1 Reviews) Read Reviews Write Review
Brand William Optics
Part Number E-UWA16
Availability available

Product Info

Manufacturer Description

Beautiful Ultra Wide Angle (UWA) Eyepiece, for beautiful observation sessions with your telescope. This 7-element UWAN eyepiece is ideal for rich-field observations at medium-high power.Extremely good price for its quality: look around and compare! Ideal for fast focal ratio telescopes (Dobsonian, etc.)

Super Wide FOV
• Outstanding ultra-wide field of view: 82 deg. F.O.V.
• Fully MultiCoated lenses for excellent light transmittance.
• Reduced chromatic aberration.
• Improved contrast compared to similar EPs.

Great Contrast
• Internally fully blackened (lenses edges and internal spacers)
• No flaring or ghosting on high-contrast objects.
• Parfocal

Light and Easy
• Innovative twist-up rubber eyecup.
• Long eye-relief: 12mm.
• No internal reflections, kidney beaning or other distracting distortions.

Terrific Fit and Finish
• High-resistance anodized black barrel.
• Smooth design for no hook up in your focuser.
• Threaded for use with 1.25" filters.


5.0 (Based on 1 Reviews) 100% of reviewers recommended this product.
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      User Notes:
      Review by Natespacewalker of Ramsey, MN.
      Apr 27, 2009

      5.0 16mm UWAN - EP You Must Consider


      Quality Lenses



      I have compared to Nagler T-6 at star parties in my 8" SCT. Difficult to distinguish other than price. You must consider these premium wide field EPs. It really is a giant leap up from smaller AFOV EPs. Like all wide field EPs, they give a space walk view and reduce light pollution compared to EPs with the same field of view.

      Bottom Line: Would you recommend this item? Yes
      Was this review helpful? Yes / No

      This review was provided courtesy of AgenaAstro.com

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      Apparent Field of View 82°
      Barrel Size 1.25" (31.7mm)
      Bolt Case Included Discontinued Item
      Bolt Case Size Agena 52x80mm
      Coatings Fully Multi-Coated
      End Caps 2
      Eye Relief by Design 12mm
      Field Stop Diameter 28.6mm
      Filter Threads Standard 1.25" Filter Thread (M28.5 x 0.6)
      Focal Length 16mm
      Lens Elements 7
      Lens Groups 4
      Parfocal Yes
      Rubber Eye Guard Yes (Twist-Up Eyecup)
      Blackened Lens Edges Yes
      Manufacturer William Optics
      Eyepiece Focal Length 15.1mm - 20mm
      Eyepiece Field of View Over 80 degrees
      Eyepiece Series William Optics UWAN
      Barrel Type Tapered barrel
      Eyepiece Weight 7.05oz (200g)