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Agena 1.25" Enhanced Wide Angle Eyepiece - 20mm

4.5 (8 Reviews) Read Reviews Write Review
Brand Agena AstroProducts
Part Number E-AG-EWA20
Availability available

Product Info

Manufacturer Description

This 1.25" Agena enhanced wide angle eyepiece is sure to provide many “ooohs,” “ahhhs,” and “wows” from those who take advantage of its generous 66-deg field of view. With features generally found in more expensive eyepieces, this ocular will escalate the joys of viewing with high-contrast views and amazing color correction.

This high quality eyepiece features a 5-element design that offers superior sharpness. All air to glass surfaces have a multi-layer coating (so these are fully multi-coated, even though the barrel imprint may say "multi coated") for maximum light transmission. The long eye relief allows for a comfortable viewing distance. All lens edges are blackened for superior contrast. The insert tube is smooth-sided and is threaded for standard 1.25" astronomy filters.

Order one today to start enjoying wide and comfortable high-power views of Saturn’s Rings, Jupiter’s Bands, icecaps on Mars, and more! The generous field of view of this eyepiece also allows for wide views of the Moon and deep-sky objects at moderate magnification.

Please also note that on the barrel, these are labeled as "Ultra Wide" but we call them "Enhanced Wide Angle" to distinguish them from our 80-deg UWA eyepieces.

Reviews

4.5 (Based on 8 Reviews) 100% of reviewers recommended this product.
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    1. Guest

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      Review by Daniel G.
      1483466548
      Jan 3, 2017

      5.0 good eyepiece for the price

      Pros:

      Cons:

      Comments:

      This eyepiece works very good. using an 8" f/5.9 reflector the outer edge is slightly out of focus, but not bad at all. I am very satisfied with this eyepiece.

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

      This review was provided courtesy of AgenaAstro.com

    2. Guest

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      Review by Aaron of Boise, Idaho.
      1443225600
      Sep 25, 2015

      5.0 A clone of the Orion Expanse

      Pros:

      Small,Wide View,Sharp

      Cons:

      None

      Comments:

      Stars are sharp to the edge at f/8. Eye relief is luxurious. I love the 66

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

      This review was provided courtesy of AgenaAstro.com

    3. Guest

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      Review by Mike in Kentucky of Central Kentucky.
      1405468800
      Jul 15, 2014

      5.0 Functionally the same as a 20mm Expanse

      Pros:

      Excellent widefield views

      Cons:

      None

      Comments:

      I was unable to find a used 20mm Orion Expanse eyepiece to match the one I have for binoviewing, so I took a chance on this version, after hearing that it is the same eyepiece at a significant savings. MY EXPERIENCE: This version and the 20mm Expanse are essentially interchangeable. During the day, I tried each eyepiece in an 80mm spotting scope and found I could go from one to the other with no difference in views. In my 127mm refractor, not only were the views of M15 and Comet Garradd also identical, but I was able to use this eyepiece with the Expanse in my binoviewers with excellent results. This eyepiece is a great value!

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

      This review was provided courtesy of AgenaAstro.com

    4. Guest

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      Review by HofW of Wellington, NZ.
      1391904000
      Feb 8, 2014

      4.0 Great value for money

      Pros:

      Easy to Use,Strong Construction,Quality Lenses

      Cons:

      Comments:

      Notes from a beginner: Currently used with a Celestron 127SLT (127mm x 1500mm). Much better than the reasonable yet cheap eyepiece shipped with the 127SLT. Very satisfied with this purchase.

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

      This review was provided courtesy of AgenaAstro.com

    5. Guest

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      Review by Monty of Litchfield, NH.
      1390694400
      Jan 25, 2014

      5.0 Agena 1.25" Enhanced Wide Angle Eyepiece - 20mm

      Pros:

      Quality Lenses,Easy to Use,Accurate

      Cons:

      Comments:

      This a great eyepiece. Crisp star images. For the money it can't be beat

      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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      Review by Gadgetace of San Antonio, Texas.
      1348358400
      Sep 22, 2012

      4.0 Rich Wide-Angle Star-Field Scanner

      Pros:

      Quality Lenses,Lightweight,Strong Construction

      Cons:

      Comments:

      This eyepiece does not disappoint. It performs quite well when compared to more expensive eyepieces that I own. What impressed me most is the long eye-relief and large AFOV. Although it is recommended to use wide-angle eyepieces in longer focal length telescopes, it performs well in my 10 inch F/5 Dobsonian. It has some distortion towards the edge of the FOV, but this is to be expected in a fast telescope. I use the Agena for scanning star fields and finding faint DSO's. Although I have other eyepieces for very specialized situations, I find myself reaching for my Agena more and more.

      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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      Review by Nakegun of Lake Elsinore, California.
      1341100800
      Jun 30, 2012

      4.0 Best widefield value

      Pros:

      Cons:

      Comments:

      For low budgets this line is essential for wide field viewing. A better value does not exist.

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

      This review was provided courtesy of AgenaAstro.com

    8. Guest

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      Review by Jeff of Camdenton, MO.
      1325116800
      Dec 28, 2011

      4.0 Not too bad for the money

      Pros:

      Easy to Use,Lightweight

      Cons:

      Comments:

      All in all for the money this lense isn't that bad. It has a good field of view but the image seems to be a little soft with not as much contrast as other lenses I've looked threw. If you want a good lense that won't break the bank I would sugest looking at the Baader Hyperion Eyepieces -they are really nice and hard to beat for the money unless you want to upgrade to something as expensive as Televue. But as far as this lense gose they definitley beat the cheap possl eyepieces that most scopes come with.

      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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      Specifications

      Apparent Field of View 66°
      Barrel Size 1.25" (31.7mm)
      Bolt Case Included Yes - Free Agena Eyepiece Container
      Bolt Case Size Agena 42x60mm
      Coatings Fully Multi-Coated
      Height (with Eye Guard) 2.6" (65mm)
      End Caps 2
      Eye Lens Diameter 23.5mm / 0.93"
      Eye Relief by Design 18mm
      Filter Threads Standard 1.25" Filter Thread (M28.5 x 0.6)
      Focal Length 20mm
      Lens Elements 5
      Lens Groups 3
      Rubber Eye Guard Yes
      Blackened Lens Edges Yes
      Manufacturer Agena AstroProducts
      Eyepiece Focal Length 15.1mm - 20mm
      Eyepiece Field of View 61 - 70 degrees
      Eyepiece Series Agena EWA
      Barrel Type With safety undercut
      Eyepiece Weight 3.80oz (107.73g)