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Nikon AF-S Nikkor 20mm f/1.8G ED

Wide-angle prime lens for Nikon SLR cameras

4 Reviews | 1 question - 1 answer

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Our take on the Nikon AF-S Nikkor 20mm f/1.8G ED

Sharp wide-angle performance in almost any light

A rocky, windswept coastline. New York City at night. A ballroom full of dancers at your daughter's wedding. You can capture it all with this fast, ultra-wide 20mm Nikon lens. Its impressive low-light capabilities provide nearly endless opportunities for shooting rich, natural-looking images — indoors and out — without the need for a flash. Superb Nikon optics and a large maximum aperture let you closely control depth of field while taking tack-sharp wide-angle photos, even when shooting wide-open at f/1.8. A perfect match for FX-format Nikon SLRs, this compact, lightweight lens also works great with DX-format cams.

Product Highlights:

  • AF-S NIKKOR 35mm f/1.8G ED standard lens
  • designed for Nikon full-frame (FX) digital and select autofocus film SLR cameras (compatible with Nikon DX sensor SLR cameras)
  • effective focal length:
    • 20mm with full-frame (FX) sensor digital or 35mm film cameras
    • 30mm with Nikon DX sensor cameras
  • built-in Silent Wave Motor for fast, quiet, and precise autofocus
  • ideal for low-light and everyday shooting
  • two aspherical and two extra-low dispersion (ED) glass lens elements enhance sharpness and virtually eliminate flare even when shooting at the widest aperture setting
  • Super Integrated Coating (SIC) enhances light transmission efficiency for superior color saturation, contrast, and reduced flare
  • full-time manual focus capability allows instant autofocus override with a twist of the focus ring
  • minimum focus distance: 7.9 in.
  • minimum aperture: f/16
  • lens construction: 13 elements in 11 groups
  • diaphragm blades: 7
  • filter/attachment size: 77mm
  • lens is 3-1/4" in diameter, 3-9/16" long
  • weight: 12.6 oz.
  • warranty: 5 years with Nikon registration
  • Our 60-day money-back guarantee
Supplied Accessories:
  • lens hood
  • front and rear lens caps
  • soft storage pouch

What's in the Box:

  • AF-S NIKKOR 20mm f/1.8G ED lens (#20051)
  • LC-77 77mm Front lens cap (installed)
  • LF-4 Rear lens cap (installed)
  • HB-72 Lens hood
  • CL-1015 Soft Lens Case
  • User's Manual
  • 5 Years of Protection warranty sheet

The first ultra wide angle lens I have ever used. It has some learning curves to use it properly. I am sure it will be a great addition to my photography. From all the reviews i have read, this lens has awesome reviews.

Paul, Buffalo, NY


Nikon AF-S Nikkor 20mm f/1.8G ED Reviews

Average Customer Review(s):

(4 Reviews)

Nikon AF-S Nikkor 20mm f/1.8G ED

Artur from Woodhaven, NY on 1/1/2019

Crutchfield Customer Review (What's this?)

Its lightweight ...compact in size...pretty quick to focus and its sharp. I really like how the glass renders the images, color and contrast are very nice. Little to no distortion as well. I wanted to go with the ultra-wide zooms but...if you want to use a ND filter need to invest in another system. With this lens, its pretty wide and NiSi makes an affordable filter kit which threads on the front of the camera for 100mm width filters.



Excellent piece of glass

Brian from Albuquerque, NM on 4/23/2017

Crutchfield Customer Review (What's this?)

I shoot DX (7200) and was looking for a good quality, Wide Angle lens to serve as a walk-around and travel lens. I was also looking for great low light performance. And, weight was an important consideration, as I have a 17-55 2.8 which is an outstanding lens, but just too heavy for travel. My first and thus far only outing with the 20mm was to Hoover Dam, and it delivered on all counts. Sharpness was outstanding, and with a 30mm equivalent FOV, it was great for outside shots of the dam and bypass bridge. Interior shots were also easily captured. I am very happy with my purchase.

Pros: Outstanding sharpness. Light weight.

Cons: None that I have uncovered thus far.

Nikon AF-S Nikkor 20mm f/1.8G ED

Paul from Buffalo, NY on 3/27/2017

Crutchfield Customer Review (What's this?)

The first ultra wide angle lens I have ever used. It has some learning curves to use it properly. I am sure it will be a great addition to my photography. From all the reviews i have read, this lens has awesome reviews.

Pros: A highly rated wide angle lens. Have not yet put it to the test. I have much confidence in Nikon F X lenses.

Cons: None yet

Small Wonder

Daniel W from New Jersey on 8/14/2015

Crutchfield Customer Review (What's this?)

As a long time user of the amazing 14-24, I was looking for a small go-anywhere compliment that accepts 77mm filters. This lens fits that bill perfectly but also ads in some extras. For most intents and purposes, this lens is every bit as good as the 14-24 @20. There may be individual characteristics that lean slightly one way or the other, but you can figure these two are about equal without a generally unnecessary amount of scrutiny. Besides matching the quality, adding filter threads and improving the portability, the 20/1.8 has some welcome enhancements. For one, you can get shallow DoF at 1.8 while the center of the image stays very very sharp. This is a fun feature for artistic purposes. Most likely due to its 7 blade diaphragm, you get outstanding sunstars/star bursts/light starts/whatever from this lens. The flare control is also superb. If you are an wide-to-ultrawide shooter, you will love this lens, even if you already have a 24mm prime or an amazing zoom covering the range. This is likely going down as a classic landscape lens.

Pros: Sharp, beautiful rendering. Great Flare control, accepts standard sized filters, very compact, very light, quite affordable. Did I mention its sharp? :)

Cons: 20mm is quite wide and this can affect its versatility. Its unlikely most people want to shoot all day with a 20mm lens. Maybe there could be a touch less vignette and distortion, but these are all very well controlled at apertures you'd likely use when they matter.


Hands-on research

Features and Specs

Mount Type Nikon F-mount
Sensor Size Full frame
Image Stabilization No
Lens Type Wide angle prime
Focal Length 20mm
Maximum Aperture f/1.8
Weight 12.6 ounces
Parts Warranty 5 Years w/registration
Labor Warranty 5 Years w/registration

Product Research

Warranty Information


Overview: The Nikon AF-S Nikkor 20mm f/1.8G ED lens is an ultra-wide angle prime lens. It is optimized for FX-format cameras, but can be used with DX-format cameras (30mm equivalent). It is ideal for landscapes and architecture, wedding parties, concerts, crowd shots, and more. The lens comes with the HB-72 lens hood and the CL-1015 Soft lens case.

Silent Wave Motor (SWM): The exclusive Nikon Silent Wave Motor (SWM) enables fast, accurate, and quiet auto focus.

Focus Mode Switch: The Focus Mode switch on the barrel of the lens lets you easily switch between manual focus and auto focus. If you want to enable auto focusing, the camera must be set to Auto Focus, and the switch on the lens needs to be set to "M/A". With most Nikon D-SLRs, the lens gives you a manual override option, allowing you to rotate the separate focus ring while pressing the shutter release halfway.

Diaphragm: The lens is equipped with a rounded 7-blade diaphragm.


  • Type of Lens: Type G AF-S lens with a built-in CPU
  • Type of Mount: Nikon F-bayonet type
  • Focal Length: 20mm (30mm DX format equivalent)
  • Filter Diameter: 77mm
  • Lens Construction: 13 elements in 11 groups (including 2 ED lens elements, and lens elements with Nano-Crystal coatings)
  • Closest Focus Distance: 7.92" (0.66')
  • Focusing Method: Rear Focusing (RF) system with AutoFocus controlled by a Silent Wave Motor, and a separate focus ring for manual focus
  • Aperture Range: f/1.8 to f/16
  • Angle of View: 94° FX format (70° DX format equivalent)
  • Dimensions: Diameter=3.245" Length=3.524" (4.099" with caps)
  • Weight: approximately 12.6 ounces

Warranty Information

Warranty Terms: Nikon offers a 1-year parts and labor warranty on this lens. An additional 4-year Extended Service Coverage is available at no charge if you register the product with Nikon within 10 days of purchase.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Small and lightweight. Able to use screw on filters (some other wide angle lenses have a bulbous front element that require expensive filter attachments). Large, f/1.8 aperture which is beneficial, some would argue required, for astrophotography. [ Ed  Jan 04, 2019 ]
I needed a light weight wide angle prime that would work well on a DX camera (D7200). Outstanding results. if you can't capture great images with this lens, it's on the photographer, not the lens. [ BRIAN  Aug 23, 2017 ]
Night photography, aurora photography, landscape photography, lightweight, sharp, contrast, ultra-wide [ Kashing  Feb 02, 2016 ]
Recently purchased the D750 and it needed a good/great criminal partner. Wanted a wide angle lens with a wide aperture for landscape, architecture, automotive etc shoots [ SALLVADOR  Dec 30, 2015 ]

1 question already asked

This Nikon AF-S Nikkor 20mm lens is not listed as compatible with the Nikon D3100 camera in our research. The D3100 was discontinued in our database before this lens was released though, so it's possible they would still work, we just don't have any info on confirmed compatibility. To find out for sure, your best bet would be to contact Nikon's Support directly at 800-645-6687. I hope that helps! My Bio: [ Larry  Feb 10, 2016 ]  Staff