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Sony Alpha 20mm f/2.8 E-Mount Prime Lens

  • mfr: SEL20F28
  • SKU: SEL20F28
In Stock
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Product highlights

  • Focal length: 20mm 
  • Aperture range: f/2.8-16
  • Sony E-mount
  • APS-C format
  • Three aspherical lens elements
  • Internal stepping motor
  • 7-blade circular aperture
  • Direct Manual Focus
  • 7.8-inch (0.2 m) minimum focus distance
  • Ultra-compact, sleek aluminum design

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Sony Alpha 20mm f/2.8 E-Mount Prime Lens

Not only will the 20mm (30mm in 35mm full-frame format) focal length and f/2.8 maximum aperture appeal to experienced photographers, but the outstanding resolution of this lens will satisfy their most stringent image quality requirements as well. Three aspheric elements help to achieve superb contrast and resolution right out to the image edges, while simultaneously enabling a compact 20.4 mm-thick pancake design that makes for a portable combination with compact E-mount cameras. The sleek aluminum design adds a stylish touch wherever you’re shooting.

Broaden Your View with a Wide Angle

From a vast cliff to a stretching sandy beach, fit everything in with a 20 mm wide angle (30 mm in 35 mm equivalent focal length), with interchangeable-lens cameras incorporating APS-C type image sensor.

Rich Detail from Corner to Corner

Three parts inside the lens work together to fix blur and distortion, even the outer edges of your photos will be crisp and clear.

Keep Bulk to a Minimum

Preparing for a day’s shoot? Slip this ‘pancake’ lens into your kit bag, a focal length of just 20 mm won’t take up much space.

Get Hands-On with Smooth Manual Focusing

An easy-grip ring on the lens barrel helps you control whether your subject is sharply in focus or blurred against the background.

Low Light? No Problem

This fixed lens has a bright, wide aperture of f/2.8 so you can capture atmospheric shots even at dusk.

Aspherical Lens Elements

Aspherical lens design dramatically reduces spherical aberration while also reducing lens size and weight. Spherical aberration is a slight misalignment of the light rays projected on the image plane. This is caused by differences in refraction at different points on conventional spherical lenses which degrade image quality in large-aperture lenses. Specially shaped “aspherical” elements near the diaphragm restore alignment of light rays at the image plane, maintaining high sharpness and contrast even at maximum aperture and can also be used at other points in the optical path to reduce distortion. Well-designed aspherical elements can reduce the total number of elements required in the lens, thus reducing overall size and weight.

Fast Focusing

A rear focusing mechanism means the lens barrel doesn't move, enabling a more compact design, faster autofocus response, and reduced minimum focusing distances.

Circular Aperture

When changing your aperture to defocus the background, the light sources appear blurred. This ‘bokeh’ effect of the blurred background can be enhanced with circular aperture blades used in this lens. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. α lenses overcome this problem through a unique design that keeps the aperture almost perfectly circular from its wide-open setting to when it is closed by 2 stops. Smoother, more natural defocusing can be obtained as a result.

Specifications

Physical
Weight 2.4 oz (69 g)
Color Black
Mount
Lens Mount Sony E-Mount
Focus
Maximum Aperture f/2.8
Minimum Aperture f/16
Focal Length 20mm
Maximum Magnification 0.12x
Angle of view 70°
Minimum Focus Distance 7.92 inch (0.2 m)
Focus Type Auto
Diaphragm Blades 7, Circular
Fixed Focal Length 20mm
Lens Format APS-C Sensors
Lens Type Wide Angle

Questions

Customer Questions
No Questions

Returns

Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact [email protected] with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at [email protected], or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

Free Two-Day Shipping

We offer free expedited shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).

Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews

Sony Alpha 20mm f/2.8 E-mount Prime Lens

Sony Alpha 20mm f/2.8 E-Mount Prime Lens SKU: SEL20F28

Rated 4 out of 5 by from Good performance, even better form factor... Pros: Small & light Great, but not excellent image quality Quick to focus, easy to use focal length Cons: A bit expensive (retail price) Not significant, but noticeable barrel distortion
Date published: 2017-06-06
Rated 5 out of 5 by from Small and sharp on center. Small, well built with very sharp results. A great match for the a6000.
Date published: 2017-04-19
Rated 5 out of 5 by from Great Little Lens This lens is the sprit of the compact mirrorless cameras. Super compact, sharp great all round..
Date published: 2017-01-02
Rated 4 out of 5 by from Very portable This isn't the sharpest lens, but it is still pretty very sharp in the center and gets a little soft in the corners. But it is so portable. It feels like a point and shoot with the a6000.
Date published: 2016-10-16
Rated 5 out of 5 by from A good lens for the value 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.
Date published: 2014-01-26
Rated 4 out of 5 by from A good general wide angle lens After reading the mediocre reviews for the SEL16F28, I ended up trying this lens (SEL20F28). The lens has proved to be very handy, and I am generally happy with the photos. The photos are sharp, but low light scenes may be a little dark with some vignetting. Two jpeg photos are uploaded for review. There was no post processing except for cropping both pictures to reduce them to the 5mb limit for this review.
Date published: 2013-09-11
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