Sony 20mm f/2.8 Lens

Sony 20mm f/2.8 Lens

Sony 20mm f/2.8 Lens

B&H # SO2028 MFR # SAL20F28
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Product Highlights

  • A-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/22
  • Rear Focus
  • Minimum Focus Distance: 9.8"
  • Seven-Blade Circular Diaphragm
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Sony 20mm f/2.8 overview

  • 1Description

Capture an ultra-wide perspective with minimal distortion and excellent control over aberrations with the Sony 20mm f/2.8 Lens for full-frame A-mount cameras. This lens also offers a maximum aperture of f/2.8 for working in dim lighting and for selective focus effects. An internal autofocus motor works with a rear focusing design for fast AF performance and for providing a minimum focus distance of 9.8". Additionally, it has a seven-blade circular diaphragm for smooth bokeh.

An ultra-wide perspective great for capturing wide landscapes or exaggerated close-ups, this 20mm can also be used on APS-C format cameras where it provides an equivalent focal length of 30mm.
A maximum aperture of f/2.8 will help users capture clean images when working in difficult lighting situations.
An integrated autofocus motor will help users quickly lock on to their subjects while a rear focusing design helps minimize aberrations from the minimum focus distance of 9.8" to infinity.
Rounded seven-blade diaphragm contributes to a pleasing bokeh quality when employing selective focus techniques.
UPC: 027242694354

Sony 20mm f/2.8 specs

Focal Length 20mm
Aperture Maximum: f/2.8
Minimum: f/22
Camera Mount Type Sony A
Format Compatibility 35mm Film / Full-Frame Digital Sensor
Angle of View 94°
Minimum Focus Distance 9.84" / 25 cm
Magnification 0.13x
Maximum Reproduction Ratio 1:7.69
Optical Design 10 Elements in 9 Groups
Diaphragm Blades 7, Rounded
Image Stabilization No
Autofocus Yes
Tripod Collar No
Filter Thread Front: 72 mm
Dimensions (DxL) 3.07 x 2.11" / 78 x 53.5 mm
Weight 10.05 oz / 285 g
Packaging Info
Package Weight 1.05 lb
Box Dimensions (LxWxH) 7.4 x 4.4 x 4.3"

Sony 20mm f/2.8 reviews

20mm f/2.8 Lens is rated 4.4 out of 5 by 7.
Rated 4 out of 5 by from A good lens I bought a Sony A850 body and needed some lenses and this (20mm F2.8 Sony) was the first one. I have had the Nikon and Canon counterparts. This is the best of the three for sure. They all seem to have some things in common. There is some Chromatic Aberrations (color fringing) and relatively soft around the outsides of a full frame camera until f 8. Don't get me wrong, it is good enough before F8 for all but poster prints. From F8 to F16 (F11 best) it is useful for professional results on a full frame camera. You will still have to clean up the CA (color fringing) in Photoshop or something like that but it cleans up very well. A good lens to have in the bag. This is the best lens in this focal length for the Sony full frame camera at this time, I have checked. There is a 24mm Carl Z. coming soon that's supposed to be excellent quality but that's still a long way from 20mm. This lens will get you shots in tight spots where nothing else will. The price is fair and a bargain if you do end up in a small room with wealthy clients.
Date published: 2010-04-27
Rated 5 out of 5 by from Amazing panoramic lens Probably the best panoramic choice on Sony Alpha mount, I'm extremely satisfied with it's saturation and sharpness. Used Tamron 17-50 and Sony 11-17 lens, incomparable to this one.
Date published: 2008-09-07
Rated 4 out of 5 by from Good landscape lens, at night too! I use the lens for landscape shots, and some street shots for greater perspective/context. It focusses quickly and sharply. I am amazed by the night-time shots. Very sharp and fast focus! Watch out for an effect that I have learned is common to most super wide angle lenses. With the aperture wide open, it will sometimes focus to infinity whereas it should have slightly inside. Initially I didn't notice this until it was pointed out to me that I had a wide open aperture, and yet the entire frame is in focus. I tested it at home and when you focus an object at 1 feet, you do get the bokeh but you have to make it close to the subject. Oh well, this issue is documented by reviewers and I like the lens enough, and I won't be using it for shooting close objects wide open.
Date published: 2010-05-11
Rated 4 out of 5 by from Nice, Compact, and Sharp This is a great lens to travel lightly with and always stays in my to go bag when heading out the door. Very sharp when stopped down a stop or two and focus speed is a non-issue. The only down side is it lacks the distance information for Sony's flash system.
Date published: 2010-07-02
Rated 4 out of 5 by from This lens fills a gap in my equipment I had this lens on my wish list for a couple of years. Since I prefer prime lenses to zooms, this one fills the gap between my 14 mm ultra wide and my 30 mm wide-normal in my Sony A-mount (APS-C) kit. The images that I have gotten with it are acceptably sharp for my needs. I would not recommend it, though, for professional use because of its plastic body. So far I have used it for close-up, non-macro photos of flowers. It does a good job of stretching the distance behind the subject while keeping decent depth of field. I still look forward to using it for landscape work. Although I know that there must be some distortion in my images using the lens, I haven't noticed it because I haven't photographed any buildings with it. That's another thing I am looking forward to.
Date published: 2018-07-29
Rated 5 out of 5 by from Nr:1 Wide angle lens Walk around lens Excellent sharpness from 2,8
Date published: 2008-12-17
Rated 5 out of 5 by from Broaden your horizons Plan to use this during decent into magma chamber in Iceland
Date published: 2015-02-16
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Sony 20mm f/2.8 Q&A

Sony 20mm f/2.8 accessories

Designed for use with:

  • Hasselblad HV
  • Sony Alpha A68
  • Sony Alpha A77 II
  • Sony Alpha A99
  • Sony Alpha A99 II
  • Sony Alpha SLT-A99
  • Sony NEX-VG900