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

Model #20051

USA Version
Nikon 20051 1
Nikon 20051 1
Nikon 20051 2
Nikon 20051 3
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Filter Thread Front:77 mm
Dimensions (DxL) Approx. 3.2 x 3.1" (81.28 x 78.74 mm)
Weight 12.6 oz (357 g)


Focal Length 20mm
Comparable 35mm Equivalent on DX Format Focal Length: 30 mm
Camera Mount Type Nikon F
Format Compatibility 35mm Film / Full-Frame Digital Sensor
Angle of View 94°
DX Picture Angle: 70°
Minimum Focus Distance 7.9" (20.07 cm)
Magnification 0.23x
Elements/Groups 13/11
Diaphragm Blades 7
Aperture Maximum: f/1.8
Minimum: f/16


Autofocus Yes
Tripod Collar No
Image Stabilization No
Expert Reviews
Pc magazine.32817846
10 October 2014

The Nikon AF-S Nikkor 20mm f/1.8G ED is an affordable lens for wide-angle lovers, but you'll want to stop it down for the best image quality.

  • +

    Ultra-wide field of view. Wide aperture. 7.8-inch close focus.

  • -

    Some edge softness unless stopped down. Modest barrel distortion. Lacks optical stabilization.

8 December 2014

This compact ultra wide angle lens from Nikon costs around £680 and sports a bright f/1.8 maximum aperture, silent, internal focusing with full time manual focus override and Nikon's Nano Crystal optical coating, to improve contrast while suppressing ghosting and flare.

User Reviews
B h photo.32817553
21 October 2015

As a wedding photographer I use this lens mainly for bride-groom accessories and close quarter large group photos. For the group photos the distortion is acceptable and sharpness top notch. When shooting the couples accessories the short focal distance gives a great wide macro type perspective.

  • +

    Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Nice Bokeh, Rugged

14 August 2015

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.

  • +

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

  • -

    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.

26 November 2015

To my eye, the 20mm focal length yields a very pleasing wide angle view on FX format bodies. For landscapes, cityscapes and interiors the 20mm AOV encompasses a large field without appearing too exaggerated or extreme especially since the distortion of this lens is held to a remarkable minimum.

3 February 2016

I've been involved in photography for over 55 years as an amateur, semi-pro and professional and have always used Nikon/Nikkor equipment. Now that I am retired and still enjoy taking photos using digital cameras (D610 and D7100) I decided to purchase the 20mm F1.8 ultra wide lens.

26 November 2014

I was excited enough by its announcement that I pre-ordered this lens. I have both the 28 mm and the 35 mm lenses in this f/1.8 series. I use them on my D800 & D600 with great success; the 20 mm is no exception. I find it to be quite sharp, with high resolution qualities.

1 November 2014

Note: See comments section for test photos. This review will be updated periodically as I use the lens more. Introduction: ---------------- This lens was a bit of a surprise announcement for me back in September, and as soon as I saw it I knew it would be great for astrophotography, and anything in...

29 January 2015

  • +

    Sharp at all apertures, lightweight, low distortion for the Focal Length.

  • -


Product Highlights
  • F Mount Lens/FX Format
  • Maximum Aperture: f/1.8
  • Two Aspherical and Two ED Elements
  • Nano Crystal Coating
  • Rear Focusing System
  • Internal Focus, Silent Wave Motor
  • Soft Pouch, Lens Hood Included
Average Expert Score
Average User Score
In The Box
  • Nikon AF-S NIKKOR 20mm f/1.8G ED
  • Soft Pouch
  • Front Lens Cap
  • Rear Lens Cap
  • Lens Hood
  • Limited 1-Year Warranty, Extendable to 5 Years with Registration
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