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  • Sony  SEL-20F28 E-Mount 20mm F2.8 Prime Lens
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Sony SEL-20F28 E-Mount 20mm F2.8 Prime Lens

by Sony
| 16 answered questions

List Price: $349.99
Price: $348.00 & FREE Shipping. Details
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  • Superior Image Quality
  • Compact Length
  • superb value and performance

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Frequently Bought Together

Sony  SEL-20F28 E-Mount 20mm F2.8 Prime Lens + Sony NEX-5TL Compact Interchangeable Lens Digital Camera with 16-50mm Power Zoom Lens
Price for both: $746.00

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Technical Details

  • all-glass-optical
  • interchangeable-lens
  • zoom

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This item: Sony SEL-20F28 E-Mount 20mm F2.8 Prime Lens
Customer Rating (23) (34) (67) (31)
Price $ 348.00 $ 199.00 $ 398.00 $ 748.00
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Amazon.com Amazon.com
Lens Prime lens Prime lens Prime lens Zoom lens
Maximum Sensor Size Compatibility APS-C / DX APS-C / DX APS-C / DX APS-C / DX
Maximum Aperture Range F2.8 F2.8 F1.8 F4.0
Min Aperture 22 22 22 22
Photo Filter Thread Size 49 millimeters 46 millimeters 49 millimeters 62 millimeters
Minimum Operating Distance 0.2 meters 0.2 meters 0.3 meters 0.25 meters
Item Weight 0.15 pounds 0.33 pounds 0.34 pounds 0.5 pounds
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Product Details

  • Product Dimensions: 0.8 x 2.5 x 2.5 inches ; 2.4 ounces
  • Shipping Weight: 5.6 ounces (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • ASIN: B00B20OYUO
  • Item model number: SEL-20F28
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (23 customer reviews)
  • Date first available at Amazon.com: January 22, 2013

Product Description

Product Description

20mm F2.8 Prime Lens

From the Manufacturer

Sony make . believe

E 20mm F2.8 Wide-Angle Prime Lens

Not only will the 20mm (30mm in 35mm full-frame format) focal length and F2.8 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.

E 20mm F2.8 Wide-Angle Prime Lens

Technology

Circular Aperture
Aspherical lens elements

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.

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. Advanced Aspherical (AA) elements are an evolved variant, featuring an extremely high thickness ratio between the center and periphery. AA elements are exceedingly difficult to produce, relying on the most advanced molding technology to consistently and precisely achieve the required shape and surface accuracy, resulting in significantly improved image accuracy and quality.

Additional Features

Rear focusing elements

Only the rear groups of the optical system move to focus the lens, which allows for speedy AF operation and a shorter minimum focusing distance. Since the front of the lens does not rotate, operability is improved when shooting with a polarizing filter attached.

Sony make . believe

2013 Sony Electronics Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Sony is not responsible for typographic and photographic errors. Features and specifications are subject to change without notice. Sony, BIONZ, BRAVIA, BRAVIA Sync, Cyber-shot, Exmor, InfoLITHIUM, Memory Stick PRO Duo, Memory Stick Duo, the Memory Stick logo, Optical SteadyShot, Remote Commander, Smile Shutter, Stamina, SteadyShot, Theatre Sync, TruBlack, and Xtra Fine LCD are trademarks of Sony. Microsoft, Windows, and Windows Vista are trademarks of Microsoft Corporation. Mac OS and iMovie are trademarks of Apple Computers, Inc. HDMI is a trademark of HDMI Licensing LLC. All other trademarks are trademarks of their respective owners.

Customer Reviews

This lens makes my NEX 5R pocketable in my jacket pocket.
wusang
That being said the lens is also reasonably sharp, reasonably fast, and the build quality is top notch.
M. Banas
Okay the Nikon's lens is better but you're stuck with 28mm equivalent.
Michael McKee

Most Helpful Customer Reviews

59 of 61 people found the following review helpful By Michael McKee TOP 1000 REVIEWERVINE VOICE on April 19, 2013
This is the lens that Sony ought to have made when the first NEX cameras came out, a reasonably fast, medium-wide angle, pancake prime. It's a perfect focal length for street photography or casual snapshots. It's small and light, making NEX cameras reasonably pocketable. It's not exceptional, but reasonably sharp across the entire field of view, at least when it is stopped down. I love the size of this lens, though it is wide enough that the edges stick out on a 5n. Just a bit, but it's there.

I was hesitant to put a preorder into B&H when this lens was announced. Sony's previous wide angle prime, the 16mm was a poor lens. I borrowed a friend's and gave it back quickly. It just wasn't sharp, and surprisingly for such a short lens, it didn't focus quickly. There are no focus problems with the 20mm.

It was a relief to look at my first images from this new prime lens. They are are adequately sharp from f/4 and smaller apertures. At f/2.8 they are at least as sharp as the old 16mm was at any focal length. It's also nice to see Sony make a lens that is sharp in the corners. Except for the Zeiss 24mm, Sony's lenses tend to have great center sharpness but soft edges. My guess is that comes from too much focus on video lenses rather than still lenses. This lens is pretty sharp, at least at the apertures that I normally use 5.6-8. It's acceptable at 2.8 and pretty good at f/4. It's soft at f/16 but still usable. I'm satisfied.

One question is how this compares to the Sigma 19mm, which is a good lens. The two obvious differences are price and size. You can pick up an older model Sigma for $150 or less, which make it very attractive. The Sigma is very sharp in the center, from f/2.8 on, sharper than the Sony 20mm. However the Sony is definitely sharper at the edges.
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7 of 7 people found the following review helpful By T. Hawkes on November 3, 2014
Verified Purchase
Oh, wow, this lens is so much better than the 16mm (SEL-16F28). I know because I used to have the 16mm but sold it after getting this one. The 20mm is much sharper, better built, with a nice and versatile field of view. It also takes the two adapters sold for the 16mm (the wide-angle which I had for the 16mm makes this 20mm a 15mm; and the fish-eye which I don't yet have but intend to buy).

In case anyone's interested, I own a NEX-6 and an A6000. I have most of the "reasonably priced" Sony E-mount lenses: the 20mm with the wide angle adapter; the 30mm Macro (a nice lens if you can get one for a good price), the 35mm prime (one of my favorite lenses for its field of view and its sharp, high-quality images); the 50mm prime (a nice lens, especially for portraits with good bokeh); the 16-50mm PZ kit lens (which I take along with the 20mm when I want to travel very light but still have a bit of a zoom on hand because it takes good, but not great, pictures as you can see clearly see once you've tried the primes); the 55-210 manual zoom (great range, nice and sharp shots, fairly bulky, but I got it for only $150 so can't complain) and the 18-105 PZ "G" lens (which is a superb carry-around lens if you don't mind its relative bulk--it's long and wide, but not too heavy). I've also tried the Sigma lenses (19 and 30mm) but thought, "These would be OK if they weren't so cheaply made (scratch easily) and so bulky and if they had OSS." So I returned them in spite of their low prices. I've also tried for a weekend, but decided not to buy, the Sony 10-18 and 16-70 zooms and the Zeiss Touit 32mm. These are built with high-quality materials and take great shots but they are way too expensive, in my opinion at least, for the relative increase in image quality over the much less expensive lenses.
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16 of 19 people found the following review helpful By Lyndon Wong on May 1, 2013
Recently bought the NEX-5R, initially with the SEL16 pancake. Very happy with returning that lens for the SEL20. This newer pancake does appear to take sharper jpeg images, and perhaps because of the more moderate wide angle focal length, distorts faces much less, especially near edges of the frame. So it's much better for taking pictures of people. Price is steep compared to the respected Sigma 19mm e-mount, but I put a premium on compactness of the combined camera and lens, so I coughed up the money. If it was under $300, like the SEL50F18, I'd give it 5 stars.
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9 of 10 people found the following review helpful By Bart on October 4, 2013
Verified Purchase
If I'm not mistaken, this is the smallest e-mount lens on the market (smaller than the 16mm). The image quality isn't bad, but certainly not as good as even the 35mm f1.8 (much less the zeiss glass), so don't expect to be blown away. It definitely gets soft when wide open but stopped down a bit it's good, which is where I find myself wanting it most of the time anyway.

$350 seems a little high, but $290 or less for a used one is a steal. After all, it does provide the most pocketable nex configuration currently available. It's not going to fit into your pants pocket, but it will easily fit into a small bag/backpack or jacket pocket. Which is great for anybody trying to make better use of their camera and carry it with them more often. You know what they say, "the best camera is the one you have with you."
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8 of 10 people found the following review helpful By M. Banas on October 29, 2013
Verified Purchase
The best attribute of this lens is it's tiny size. My NEX-7 fits into a coat pocket with this lens attached. That being said the lens is also reasonably sharp, reasonably fast, and the build quality is top notch. I feel that the immage quality is better than what you can get with either of the kit lenses that SONY ships with their NEX cameras.
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