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GSO 2" SuperView Eyepiece - 50mm

4.4 (25 Reviews) Read Reviews Write Review
Brand GSO
Part Number SV50
Availability available

Product Info

Manufacturer Description

Since their introduction in the US market a few years ago, the GSO SuperView series of wide-field eyepieces have taken the amateur astronomy community by storm. These are, by far, the best-selling GSO eyepieces. With an expansive apparent field of view (AFOV) ranging from 60 - 68 degrees, users will experience incredible views without breaking the bank or impinging on your scope's balance.  SuperView eyepieces are available in 2 barrel sizes (1.25" or 2') and 5 focal lengths (ranging from 15mm to 50mm).

Images are virtually free of chromatic aberration or pincushion distortion with excellent flatness of field and eye relief. These eyepieces feature rubber grips on the housing and foldable rubber eyeguards. All eyepieces are fully multicoated, have blackened lens edges for improved contrast, and come with two end caps.

Guan Sheng is a leader in optical telescopes and accessories and their products have been sold for years by the "Big Three" (Meade, Celestron and Orion) under their own brand names. Give these a try - you will not be disappointed!

Reviews

4.4 (Based on 25 Reviews) 96% of reviewers recommended this product.
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    1. Guest

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      Review by Andrew D.
      1550635877
      Feb 19, 2019

      5.0 GSO Super View 50mm Wide Field Fully Multi-Coated

      Pros:

      Cons:

      Comments:

      Build quality is outstanding. I haven't had a chance to use it yet, but it appears to be nicer than I could have expected.

      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 Donald S.
      1548247732
      Jan 23, 2019

      5.0 GSO 2" SuperView Eyepiece - 50mm

      Pros:

      Cons:

      Comments:

      I'm using a Bresser Messier NT-130/1000 converted to use 2" eyepieces. The best thing I can say about my new GSO 2" SuperView Eyepiece - 50mm is WOW, what a difference. I'll be using this a lot.

      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 Pete F.
      1545031470
      Dec 16, 2018

      4.0 Great Buy for Some Scopes, but...

      Pros:

      Cons:

      Comments:

      I have owned several GSO Superview EP's, and they all are excellent value. However, on an 8" SCT I found this to be too long a focal length EP as it was next to impossible to place the eye in the right position before losing sections to blackouts. When I was able to temporarily position myself to get a full view, the image was very good, much better than price would indicate. I would highly recommend their Superview 42mm as the lowest usable magnification in a similar SCT.

      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 Rui C.
      1544736985
      Dec 13, 2018

      2.0 The eye placement is terrible

      Pros:

      Cons:

      Comments:

      The eye release is too long. You have to really lean back to see anything. However, the rubber eye guard is not tall enough to protect you from stray light. Very poor design!

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

      This review was provided courtesy of AgenaAstro.com

    5. Guest

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      Review by James S.
      1534301189
      Aug 14, 2018

      5.0 GSO 2" SuperView Eyepiece - 50mm

      Pros:

      Cons:

      Comments:

      I actually purchased the GSO 2” - 30mm, 42mm, and 50mm eyepiece set from Agena. After using them
      on my Explore Scientific 127mm refractor I was thrilled with the clear wide angle views I was able to experience with each. Eye relief is excellent. I highly recommend all of these eyepieces if your looking for great value and quality.
      JAS in Arizona

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

      This review was provided courtesy of AgenaAstro.com

    6. Guest

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      Review by Carlos O.
      1520853165
      Mar 12, 2018

      5.0 My first 2" eyepiece

      Pros:

      Cons:

      Comments:

      I bought it together with the the 2" 2X ED barlow and I'm extremely happy about their performance.

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

      This review was provided courtesy of AgenaAstro.com

    7. Guest

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      Review by Jason C.
      1517358014
      Jan 30, 2018

      5.0 Solid and light

      Pros:

      Cons:

      Comments:

      My 40mm William Optics SWAN 2" eyepiece is heavier and bigger than this GSO 50mm. I really enjoy the view from this wide-view eyepiece. I use it without problems in my Explore Scientific 2" diagonal. I have used it in an ST80 f/4.4 refractor and my 127mm achromat. I certainly recommend this eyepiece for wide views. I view from a light-polluted suburb of Los Angeles, and it works just fine.

      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 Sang K.
      1513550363
      Dec 17, 2017

      5.0 GSO 50mm Eyepiece

      Pros:

      Cons:

      Comments:

      For it's price it is worth it!

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

      This review was provided courtesy of AgenaAstro.com

    9. Guest

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      Review by Anurag S.
      1506449172
      Sep 26, 2017

      5.0 GSO 2" SuperView 50mm eyepiece

      Pros:

      Cons:

      Comments:

      It is an excellent piece of optics, highly recommended. The only issue is the long eye relief, which takes some getting used to.

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

      This review was provided courtesy of AgenaAstro.com

    10. Guest

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      Review by Gustavo Sanchez
      1484878740
      Jan 19, 2017

      4.0 GSO 50mm Super view 2"

      Pros:

      Cons:

      Comments:

      Construction is typical generic eyepiece of good quality. Eye lens is large and with a deep green coating, looks good. I like the smooth barrel which slides easily in and out of the diagonal. Views through my AR152 achromat are sharp edge to edge.

      The bad news is the AFOV, which is far from the advertised 60 degrees. Using planetarium software and extensive observation of several objects, I have determined that the real AFOV of this eyepiece is about 40 degrees. It yields about two degrees in the f6.5, 6in refractor.

      I feel good with the eyepiece because it has very good eye relief, but the AFOV on the description is not correct.

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

      This review was provided courtesy of AgenaAstro.com

    11. Guest

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      Review by Michael K.
      1483039782
      Dec 29, 2016

      5.0 Excellent quality for the price

      Pros:

      Cons:

      Comments:

      I use 2 " eyepieces almost exclusively. I started out with 25, 30 and 35mm sizes and found that with a good quality Barlow, the 25 especially was suitable for both solar system and deep sky viewing. I use the 30 and 35 for clusters. I decided I needed a couple more sizes and I bought the 50 and 42 mm GSOs. With a very nice 60 degree FOV the GSO 50 gives an amazing complete view of M45. These eyepieces are very clear and bright from the center all the way to the edge with maybe a little variance from that right at the edge. My test of the GSOs was to view M45, 38, 37, 36 and 35. The results: clear, bright images with nice pinpoints of light. For me, I feel I can't do better for the price. The build quality appears to be very good. The eyepieces are light weight when compared to the other 2 inch eyepieces I have, but for me, what matters in the end, is what I can see with them. The seeing with the GSOs is excellent.

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

      This review was provided courtesy of AgenaAstro.com

    12. Guest

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      Review by Karl D.
      1482807782
      Dec 26, 2016

      5.0 GSO 2" SuperView Eyepiece - 50mm

      Pros:

      Cons:

      Comments:

      The EP is excellent !! I am using it with a Celestron 150mm reflector, just what I wanted for larger FOVs. Good quality and price too.

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

      This review was provided courtesy of AgenaAstro.com

    13. Guest

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      Review by astrorick of Brunswick, GA.
      1453593600
      Jan 23, 2016

      5.0 GSO 2'' Superview 50mm review

      Pros:

      Lightweight,Quality Lenses,Eye Relief

      Cons:

      None

      Comments:

      This is turning out to be my favorite low power eyepiece. The nice wide field, great eye relief and vivid colors make it a joy to use. The coatings offer the best color rendition of any of the eyepieces I own. I use it with a 20'' f5 scope for fantastic low power 59x wide field viewing of nebulas and globular clusters. I have many more expensive eyepieces but I now use this one eyepiece more than the others combined. I love this eyepiece!

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

      This review was provided courtesy of AgenaAstro.com

    14. Guest

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      Review by JakeB of San Jose.
      1427846400
      Mar 31, 2015

      4.0 Plenty to like about this Eyepiece

      Pros:

      Easy to Use,Quality Lenses

      Cons:

      Heavy

      Comments:

      Great eyepiece for the price. 68 degree viewing with plenty of eye relief. The barrel accepts a screw in filter or the 1.5X barlow lens from GSO which adds to it's versatility. I have better lenses that cost 2X - 3X more but they offer only 10% better views.

      When I attend the monthly Star Parties offered to the public by our Astronomy Club, this is the eyepiece I bring. It usually get's more compliments than any other eyepiece and if it get's a fingerprint, I just clean it with a lens wipe. No problems.

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

      This review was provided courtesy of AgenaAstro.com

    15. Guest

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      Review by beagle of Charleston, WV.
      1401494400
      May 30, 2014

      5.0 Quality Eyepiece

      Pros:

      Lightweight,Strong Construction,Easy to Use,Accurate,Quality Lenses

      Cons:

      Comments:

      Quality eyepiece that gives clear, wide field views.

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

      This review was provided courtesy of AgenaAstro.com

    16. Guest

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      Review by Jose of Huancayo, Peru.
      1348272000
      Sep 21, 2012

      5.0 Very good, quality and value

      Pros:

      Quality Lenses,Strong Construction

      Cons:

      Comments:

      Very surprised by quality and value - Good wide field lens for use with my 14 inch Celestron CGEM DX 1400 Edge HD. A good buy and, as with all GSO products, it's high quality at low price. The glass and coatings are all first rate.

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

      This review was provided courtesy of AgenaAstro.com

    17. Guest

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      Review by Béon Jacky of FRANCE - TROYES.
      1272758400
      May 1, 2010

      5.0 Good item

      Pros:

      Quality Lenses

      Cons:

      Comments:

      A suggestion to add a step M42 below the rubber protection to install a reflex camera.

      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 yoshac of Boston, MA.
      1265932800
      Feb 11, 2010

      4.0 Wide angle, perhaps too wide for some?

      Pros:

      Strong Construction,Quality Lenses

      Cons:

      Very wide angle

      Comments:

      The 50mm is the 'big daddy' of the GSO Superview eyepiece range, the smaller members being the 42mm, 30mm 2" and the 20mm and 15mm 1.25". As such, it is really intended as a 'finder' eyepiece, or for use with very long focal length scopes only.

      I used this on a C11 (2.8m focal length) scope, and even at F/10 it is pushing the limits of the optics. The central obstruction can become visible and cause significant blackout, and the wide angle is very dependent on the eye-relief distance. However, this EP could work very well on a C14, where the longer focal length is more accommodating. Although I haven't tried it I would suspect it would also probably make a good match as a wide angle eyepiece for a 16" Dobsonian.

      In general, this is a high quality eyepiece, but beware that it may be application-specific depending on the design of your scope. Still, a good buy and as with all GSO equipment it's high quality at low price.

      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 Tony S of St Clair Shores, MI.
      1263945600
      Jan 19, 2010

      4.0 Perfect addition to anyone's collection

      Pros:

      Strong Construction,Accurate,Quality Lenses

      Cons:

      Comments:

      This lens is great for finding and centering an object precisely in my scope. It's the first one I choose when setting up for a long night of picture taking.

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

      This review was provided courtesy of AgenaAstro.com

    20. Guest

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      Review by EduDave of Placerville, CA (2000 ft).
      1260489600
      Dec 10, 2009

      4.0 Great wide field eyepiece with an SCT!

      Pros:

      Great Value

      Cons:

      None with an SCT

      Comments:

      Good wide field lens for use with my 10 inch SCT, a modified Meade LX50 EMC. Although it's not the brightest lens on the market, it produces a good flat-field image. Most of the Orion nebula is visible with virtually no aberations as one views from the center to the edge of the image.

      Absolutely no problems focusing with or without my 2" Antares diagonal on the SCT.

      This is not true with my 3 inch refractor, a StellarView AT1010. The lens is usable and provides an extremely wide view. However an extension must be used with a diagonal to achieve focus and their is visible aberation toward the edge of the image.

      Overall a great SCT wide-field low-power eyepiece.

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

      This review was provided courtesy of AgenaAstro.com

    21. dfrybarger

      dfrybarger New Member

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      1259953500
      Dec 4, 2009

      4.0 Great eyepiece for the price

      Pros:

      Beautiful wide field views, lightweight, very reasonable cost.

      Cons:

      None

      Comments:

      I purchased this eyepiece from Agena Astro about 9 months. I had already had experience with a similar 40mm eyepiece and really enjoyed the nice widefield views. With my Celestron 80ED refractor (F7.5) and my Celestron 100ED refractor (F9), I see very little coma. A free plastic bolt case was included at no extra cost.

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

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      Review by Ray of Columbus, GA.
      1244419200
      Jun 7, 2009

      3.0 Great Deal

      Pros:

      Great Coatings

      Cons:

      Loooong Eye Relief,Blackouts

      Comments:

      Decent quality and value. Blackouts could be a problem for novices or children due to an amazing amount of eye relief inherent to the design. The 42mm SuperView is a little better optically and provides almost the same true field, but the 50mm is much brighter. I own the entire set of SuperViews and am pleased with each. The glass and coatings are all first rate.

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

      This review was provided courtesy of AgenaAstro.com

    23. stargazertony

      stargazertony New Member

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      Review by StargazerTony of Apple Valley, CA.
      1233619200
      Feb 2, 2009

      4.0 Not bad for the price!

      Pros:

      Light weight,Nice glass and coatings,Nice wide FOV

      Cons:

      A little blackout effect

      Comments:

      I have had the GSO 50mm Super View eyepiece for 3 years and have really enjoyed it. It is a decent 5 element 2" eyepiece, and it has a very nice feel. The construction of the eyepiece is good and rugged, yet it is light for an eyepiece of its size. The optics are quite good and the coatings look very good with no flaws. I use it in my Discovery 12.5" f/5 dob and it performs pretty well. Eye relief was comfortable enough to use with my glasses on. Amazingly I get good pinpoint star images across the entire FOV except at the very edge. When using this eyepiece I have to hold my eye back farther than I am used to or I get a little blackout, but it is not bad. I have used this eyepiece in a C14 also and with the slower optics this eyepiece did a really nice job, and got some good compliments from some of my club members. I mainly use it at star parties since it has such a wide field of view. The FOV is nice and I can get M31, M32 & M110 all in the same view. I mainly recommend this for scopes slower than f/8 and it is a good all around wide FOV eyepiece.

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

      This review was provided courtesy of AgenaAstro.com

    24. Guest

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      Review by Ed of Maine.
      1228089600
      Nov 30, 2008

      5.0 Great EP for A Great Price!

      Pros:

      Strong Construction,Quality Lenses,Comfortable Eyepiece

      Cons:

      Comments:

      Very surprised by this bargain priced ED. NGC884 & 869 at same time - great Star Party EP!

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

      This review was provided courtesy of AgenaAstro.com

    25. stargazertony

      stargazertony New Member

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      1204205520
      Feb 28, 2008

      4.0 Not bad for the price!

      Pros:

      Nice wide FOV, light weight, nice glass and coatings.

      Cons:

      Just a little blackout effect in faster scopes.

      Comments:

      I have had the GSO 50mm Super View eyepiece for 3 years and have really enjoyed it. It is a decent 5 element 2" eyepiece, and it has a very nice feel. The construction of the eyepiece is good and rugged, yet it is light for an eyepiece of its size. The optics are quite good and the coatings look very good with no flaws. I use it in my Discovery 12.5" f/5 dob and it performs pretty well. Eye relief was comfortable enough to use with my glasses on. Amazingly I get good pinpoint star images across the entire FOV except at the very edge. When using this eyepiece I have to hold my eye back farther than I am used to or I get a little blackout, but it is not bad. I have used this eyepiece in a C14 also and with the slower optics this eyepiece did a really nice job, and got some good compliments from some of my club members. I paid about $70 for it back in 2004. I mainly use it at star parties since it has such a wide field of view. The FOV is nice and I can get M31, M32 & M110 all in the same view. I mainly recommend this for scopes slower than f/8 and it is a good all around wide FOV eyepiece.

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

      Apparent Field of View 60°
      Barrel Size 2" (50.8mm)
      Bolt Case Included Yes - Free Agena Eyepiece Container
      Bolt Case Size Agena 65x120mm
      Coatings Fully Multi-Coated
      Height (with Eye Guard) 145mm
      End Caps 2
      Eye Relief by Design 35mm
      Filter Threads Standard 2" Filter Thread (M48 x 0.75)
      Focal Length 50mm
      Lens Elements 5
      Lens Groups 3
      Rubber Eye Guard Yes
      Blackened Lens Edges Yes
      Manufacturer GSO
      Eyepiece Focal Length 40.1mm and Higher
      Eyepiece Field of View 51 - 60 degrees
      Eyepiece Series GSO SuperView
      Barrel Type Smooth sided
      Eyepiece Weight 13.60oz (385.55g)