Sony 20mm f/2.8 E-mount Lens

Model #SEL20F28

USA Version
Sony sel20f28 1
Sony sel20f28 1
Sony sel20f28 2
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Weight 2.43 oz (69 g)
Dimensions (DxL) Approx. 2.46 x 0.80" (62.6 x 20.4 mm)
Filter Thread Front:49 mm


Format Compatibility DSLR (APS-C Sensor)
Minimum Focus Distance 7.8" (.20 m)
Magnification 0.12x
Elements/Groups 6/6
Focal Length 20mm
Comparable 35mm Focal Length: 30 mm
Diaphragm Blades 7
Aperture Maximum: f/2.8
Minimum: f/16
Camera Mount Type Sony (E Mount for NEX)


Tripod Collar No
Autofocus Yes
Image Stabilization No
User Reviews
B h photo.34921152
16 January 2018

Recently I took approximately 100 pictures of birds and small animals. I used Sony FE 2.0 Teleconverter with my SEL100400GM and Sony A7RII. It was a perfect match. I did not notice any significant auto/manual focus or sharpness issues.

3 November 2017

This is a great compact lens. It's great for street photography and a good lens to have when you want to keep your camera compact. It's pretty sharp, even wide open at f2.8 but you can see a little softness towards the edges of the frame.

  • +

    CompactLightweightFast AF

  • -

    A little soft on the edges when wide open.

25 January 2018

This is a excellent product that works just as it should. The only drawback is inherent in the use of any tele-extender, the decrease in the amount of light at a specific setting. But, that is no fault of the device. This will multiply the focal length of your sony alpha lenses.

25 January 2014

I have been using this wide angle lens since July 2013 and it has become my go to lens for landscapes and portraits. Basically, I use it for all kinds of photo taking. The lens produces great photos in natural light. My photos are sharp and vibrant. I've attached an unedited photo.

B h photo.34921152
3 weeks ago

I have the 70-200GM and was looking for a longer lens for occasional use. The 100-400GM looked great, of course - but at $2500 or so it was just to steep for occasional use. The teleconverter does the trick for me.

B h photo.34921152
27 November 2018

Save some money and get the 100-400mm G II lens instead of the adapter. It has better reach, quality, light, distortion, no messing with extra adapter and if you really want to get the adapter you will have about 725mm. This does not increase your lens by 2x. There is flaring. There is distortion.

19 November 2018

I got this to add to my Sony 400mm f2.8. It's a perfect fit. The lens still focuses quickly and before you know it you have an 800mm f5.6. You can program a button to go to crop sensor and then you have an image that looks even closer.

18 October 2018

This only works with 2 Alpha lenses, f2.8 70-200 and the f4 100-400. I returned this so I cannot comment on the quality since I do not have either of these lenses for my Sony A7riii.

B h photo.34921152
22 September 2018

This lens on my a6000 is so small I can carry it in my coat pocket.I love the quirky lens shade in spite of all the complaints. It worksand it is small.

4 September 2018

Loosing 2 stops is tough, but man, 400mm hand held and sharp as a tack is great. I have it on a Sony 70-200GM and it really puts you out there. Crushes depth of field and with the a7riii set at crop (2x) you get a whopping 800mm effective focal length.

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
In The Box
  • Sony 20mm f/2.8 Alpha E-mount Lens
  • Front Lens Cap
  • Rear Lens Cap
  • ALC-SH113 Lens Hood
  • Limited 1-Year Warranty
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