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Sony 20mm f/2.8 Alpha E-mount Lens

You Pay: $348.00
Product Highlights
  • 20mm Prime Lens
  • Aperture Range: f/2.8-16
  • 30mm Equivalent in 35mm Format
  • Internal Stepping Motor
  • Direct Manual Focus
  • 7.8" (0.2 m) Minimum Focus Distance
  • 3 Aspherical Lens Elements
  • Ultra-compact Design
  • Fits Sony NEX-mount Cameras

The 20mm f/2.8 Alpha E-mount Lens from Sony is a compact 20mm prime lens for the Sony NEX line of APS-C sized mirrorless cameras. Its 35mm focal length equivalent is 30mm which classifies it as a wide-angle lens with multiple applications. Its maximum aperture of f/2.8 is bright enough for low-light capture and shallow depth of field imaging and its optical design consists of three aspherical elements which correct distortions and aberrations and provide clear, high contrast, detailed images. A smooth, quiet internal stepping motor is used for both focus drive and aperture actuation and makes this lens ideal for shooting video. Less than an inch long and built with aluminum alloy, it is both compact and durable. Autofocus and Direct Manual Focus, which allows for precise manual focus even in AF mode, is supported for both photo and video. 

Wide-Angle Focal Length and Fast Aperture
With a 20mm focal length (35mm equivalent of 30mm) and a bright maximum aperture of f/2.8, this lens provides a wide-angle focal length ideal for numerous applications and shooting situations. Its maximum aperture is fast enough for effective low-light shooting and shallow depth of field imaging.
Compact Aluminum Design
The aluminum alloy lens barrel is inlaid into a molded-plastic component for a lightweight yet durable construction. It measures 0.8" (20.4mm) in length and fits well with the compact design of the NEX-system cameras.
Image Quality
Three aspherical lens elements correct distortions and aberrations and richly detailed images with high resolution and excellent contrast are possible even in the periphery of the frame.
Smooth, Quiet Focus and Aperture Actuation
An internal stepping motor is used for focus drive and aperture actuation which results in a smooth, low-noise operation ideally suited for shooting video.
Direct Manual Focus
Direct Manual Focus allows for precise manual focusing at anytime, particularly useful for critical focus when shooting video.
Circular Aperture
This lens features seven aperture blades that form a near circle which provides a pleasing defocused circular effect (bokeh) on the background of your image when the aperture is set wide open.
Performance
Focal Length 20mm
Comparable 35mm Focal Length: 30 mm
Aperture Maximum: f/2.8
Minimum: f/16
Camera Mount Type Sony (E Mount for NEX)
Format Compatibility DSLR (APS-C Sensor)
Minimum Focus Distance 7.8" (.20 m)
Magnification 0.12x
Elements/Groups 6/6
Diaphragm Blades 7
Features
Image Stabilization No
Autofocus Yes
Tripod Collar No
Environmental
Physical
Filter Thread Front:49 mm
Dimensions (DxL) Approx. 2.46 x 0.80" (62.6 x 20.4 mm)
Weight 2.43 oz (69 g)
Sony 20mm f/2.8 Alpha E-mount Lens
  • Front Lens Cap
  • Rear Lens Cap
  • Limited 1-Year Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    Sony20mm f/2.8 Alpha E-mount Lens
     
    4.3

    (based on 8 reviews)

    Ratings Distribution

    • 5 Stars

       

      (4)

    • 4 Stars

       

      (3)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (1)

    • 1 Stars

       

      (0)

    86%

    of respondents would recommend this to a friend.

    Pros

      Cons

        Best Uses

            • Was this a gift?:
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          Reviewed by 8 customers

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          (0 of 1 customers found this review helpful)

           
          5.0

          Nice Wide Angle lens

          By Peter

          from Oxford, PA

          About Me Casual Photographer

          Verified Buyer

          Pros

          • Durable
          • Easily Interchangeable
          • Lightweight

          Cons

            Best Uses

            • Landscape/Scenery
            • Video

            Comments about Sony 20mm f/2.8 Alpha E-mount Lens:

            Bought this to use with my Sony A6000 to capture wide angle videos with a fast lens and it does the job nicely.

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            (0 of 1 customers found this review helpful)

             
            5.0

            Fantastic Pancake Lens

            By T-LOC

            from Silver Spring,MD

            Comments about Sony 20mm f/2.8 Alpha E-mount Lens:

            Great quality for the dollar. Better than previous model.

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            (1 of 12 customers found this review helpful)

             
            4.0

            It comes with a strange lens hood

            By cshen

            from Fremont, CA

            About Me Photo Enthusiast

            Verified Buyer

            Pros

            • Compact
            • Lightweight

            Cons

            • No Oss

            Best Uses

            • Street Candid

            Comments about Sony 20mm f/2.8 Alpha E-mount Lens:

            It comes with a unusual lens hood with a rectangular opening without any petals, which make my nex-7 look like a compact camera. As for its pros and cons, everybody knows: compact but not zoomable. Go for it if you want your nex camera look unconspicuous.

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            • No

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            (28 of 28 customers found this review helpful)

             
            4.0

            Excellent at Being What It Is

            By Copper Mike

            from Cuyahoga Falls, Ohio

            See all my reviews

            Verified Buyer

            Pros

            • Quick Quiet Focus
            • Reasonably sharp
            • Useful Focal Length
            • Very compact

            Cons

            • Imprecise In Low Light

            Best Uses

            • General purpose
            • Street shooting
            • Travel

            Comments about Sony 20mm f/2.8 Alpha E-mount Lens:

            I primarily use an NEX-6 (which I absolutely LOVE!). On my NEX-6, Sony's 35/1.8 is my primary walking-around everyday lens... but sometimes, you need something a little bit wider to take in the full scope of what you're looking at. That's why I got the 20/2.8, and it excels at that purpose.

            Is this the sharpest lens Sony offers? Nope. But it's a pancake lens, after all, so I wasn't expecting it to be - and neither should you. What it is is reasonably sharp, even at the edges of the frame; unless you're a pixel-peeping sharpness fanatic, I'd anticipate that you'll be pleasantly surprised at and satisfied with the level of sharpness this lens can deliver (more on that in a moment). If you feel that you need extreme center sharpness, there's always the Zeiss 24mm... at nearly three times the price.

            I shot a couple hundred frames with the 20/2.8 before I decided that I liked it - honestly, for the first fifty frames or so, I was pretty sure I didn't like it. From that experience, I have a few points to make that may shorten your adjustment curve and help you love this lens straight out of the box... to start with, be aware that this lens focuses very accurately in good light, but will frequently only focus "good enough" in lower light situations. To compensate and achieve precise focus in less-than-optimum light, here's what I learned that I needed to do: set the focus point at Center; keep the focus mode set at DMF so I can fine-tune the focus (if desired) after AF-lock in anything other than outdoors/daylight; enable 2-second MF Assist so the image is briefly magnified while I'm fine-tuning the focus; enable focus-peaking so that I can quickly confirm that the area of highest contrast is, in fact, what I meant to have in focus (through trial and error, I've found that Red/Medium is the all-around best highlight setting for me - White often got lost in daylight).

            A few more things... the focus motor is quiet, which I appreciate, and very fast, which I also appreciate. There is broad depth of field, except with VERY close subjects (this IS a WIDE prime after all!), so expect minimal background and foreground defocus (as you should; this IS a WIDE prime, after all!). As to getting a good shot with a wide prime, there's an old saying with news/street photogs - "f/8 and be there." Well, not with this lens. In my opinion, it's "f/4 and be there", or maybe f/5.6 if you must. That's the range where I think this lens best balances sharpness with depth of field.

            Finally, and not inconsequentially, is the included lens hood. It's design is simply brilliant! I really wish Sony had something just like it that would fit the 35/1.8! The lens hood is essentially a bayonet-mounted lens CAP with a 16:9 ratio horizontal opening just large enough for the lens to cover the sensor. It's threaded externally on its front so you can attach filters or the (also-included) lens cap directly to the hood and without having to remove the hood - in fact, you should NEVER have to remove this hood at all, except perhaps to periodically clean the lens - and you really won't need the lens cap, since the hood does a remarkable job of protecting the lens; better, I suspect, than any other lens hood ever made. Nice touch, Sony - really! (Now how about offering a hood like this for the 35/1.8? No, seriously... how 'bout it, Sony?)

            Bottom line: I love the Sony 35/1.8 lens - if you don't have one, get one; you'll love it too. If you, like me, also need something a little wider now and then, this is it: I definitely recommend the Sony 20/2.8.

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            (4 of 7 customers found this review helpful)

             
            5.0

            A good lens

            By Iron Creek Photography

            from Tucson, AZ

            See all my reviews

            Verified Reviewer

            Pros

            • good focal length
            • Light-weight
            • Small

            Cons

              Best Uses

              • landscape

              Comments about Sony 20mm f/2.8 Alpha E-mount Lens:

              I'm new to the whole Sony lineup so will only express what my limited know is. Brought a Sony NEX-7 to be converted to infrared and just got the camera back. The lens came with a 18-55 but I wanted a smaller lens and picked the 20 as it fits (focal-length) between my two-most used medium format lenses.

              So far and with very limited usage due to harsh conditions I'm very pleased with the overall files.

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              (2 of 3 customers found this review helpful)

               
              4.0

              At least not bad quality and nice design

              By Anatoly

              from Moscow, Russian Federation

              Pros

                Cons

                  Best Uses

                    Comments about Sony 20mm f/2.8 Alpha E-mount Lens:

                    I'm owner of NEX-6. It's well known sad fact that lines of Sony' Nex lenses is not so fantastic as we'd like and thanks to Sigma we have a little bit better choice to find something suitable according a personal test...
                    I use Sigma 19mm f2.8 EX DN as an incredibly inexpensive and generally good walking/travel lens and I almost happy with it.
                    But we always try to find something better :)
                    I bought this Sony' newest lens to replace Sigma because my copy of 19 mm Sigma is not the champion of sharpness on the borders and corners at all. And apparently I'm right.
                    Sharpness of Sony 20mm lens on picture's borders and especially on corners much better than its Sigma's sister can provide. Sigma's center is the best and Sony' lens doesn't beat Sigma there.
                    Generally this Sony lens provides at least not bad optical quality, especially in terms of sharpness/resolution, high contrast and color rendering. I found the lens optical quality is not a perfect but more than acceptable, the main weak points are Geometrical pincushion distortions (I think it's about 3%, you won't notice it at all if you shoot landscapes, but it may be really noticeable on pictures of interiors and architecture) and moderate, but noticeable level of Chromatic Abberations. The both disadvantages is the matter of several seconds to remove with help of RAW' any converter, and it seems my camera removes CA from its JPG files.
                    I must notice that the lens design is lovely and perfect. I would even say that the lens has incredible design of its attached hood that also defends a glass surface against any unexpected/undesirable contacts, I believe any photographer will appreciate a fantastic lightness and usability of the lens let alone a nice picture that is creating by so small and light toy...

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                    (9 of 13 customers found this review helpful)

                     
                    2.0

                    Just barely better than 16mm pancake

                    By ZTJ

                    from Salt Lake City, UT

                    Verified Buyer

                    Pros

                    • Improvement Over 16mm
                    • Small

                    Cons

                    • No stabilization
                    • Slow Af Motor
                    • soft wide open

                    Best Uses

                    • Smallest Nex Combo

                    Comments about Sony 20mm f/2.8 Alpha E-mount Lens:

                    I tested it in general purpose, bright light, low light, indoors and out.

                    Focus is somewhat slow and clumsy compared to the larger lenses.
                    Sharpness: It's very similar to the 16mm pancake except that you don't have to stop down to f/8 to get decent usable results. f/4 will do.
                    Mustache distortion makes RAW processing a hassle at times.
                    It is way, way too expensive for its level of performance.

                    I would say it's about on par with the kit lens when stopped down as far as the kit lens (f/3.5) at 20mm. So it's like having the kit lens locked at 20mm, with a bonus 2/3rds stop added brightness, and of course the small size. But, you lose stabilization.

                    It comes with a hood similar if not identical to the hood on the 30mm macro. It looks nicer than the original 16mm pancake and it's about 1mm shorter.

                    There isn't anything especially nice to say about the lens. It's acceptable and it's small. Coupled with the NEX-5R it makes a very small combination. If that's not critical, I'd recommend saving a little more cash and buying the far better 35mm f/1.8 OSS. In fact, I'd rather shoot with the kit lens with stabilization since I would only shoot this 20mm lens at f/2.8 if desperate.

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                    (4 of 4 customers found this review helpful)

                     
                    5.0

                    Very nice lens

                    By Soliman A. Shamsalddin

                    from Saudi Arabia, Jeddah

                    Verified Buyer

                    Pros

                      Cons

                        Best Uses

                          Comments about Sony 20mm f/2.8 Alpha E-mount Lens:

                          This is a better lens than the 16mm. No softness noticede so far even wide open. The awasome thing that it works nicely with Sony NEX VCL-ECU1 ultra wide converter 0.75x which gives you 15mm to the crop sensor. Nice wide angle baby.

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