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

BH #NI2018 • MFR #20051
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Nikon AF-S NIKKOR 20mm f/1.8G ED Lens
Key Features
  • F-Mount Lens/FX Format
  • Aperture Range: f/1.8 to f/16
  • Two Aspherical Elements, Two ED Elements
  • Nano Crystal & Super Integrated Coatings
A smart ultrawide, the AF-S NIKKOR 20mm f/1.8G ED from Nikon blends a desirable broad field of view with a sleek form factor, a bright design, and a sophisticated optical layout. The fast f/1.8 maximum aperture excels in difficult lighting conditions and also offers increased control over depth of field. The optical design incorporates both aspherical and extra-low dispersion element to minimize spherical and chromatic aberrations for greater sharpness and clarity. Also, both Nano Crystal and Super Integrated Coatings have been applied to reduce flare and ghosting for improved contrast and color accuracy. Balancing the optical attributes, the lens is also characterized by a Silent Wave Motor that produces fast, smooth, and quiet autofocus capabilities, along with the ability to manually override focus at any time for more selective control.
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Nikon AF-S NIKKOR 20mm f/1.8G ED Overview

A smart ultrawide, the AF-S NIKKOR 20mm f/1.8G ED from Nikon blends a desirable broad field of view with a sleek form factor, a bright design, and a sophisticated optical layout. The fast f/1.8 maximum aperture excels in difficult lighting conditions and also offers increased control over depth of field. The optical design incorporates both aspherical and extra-low dispersion element to minimize spherical and chromatic aberrations for greater sharpness and clarity. Also, both Nano Crystal and Super Integrated Coatings have been applied to reduce flare and ghosting for improved contrast and color accuracy. Balancing the optical attributes, the lens is also characterized by a Silent Wave Motor that produces fast, smooth, and quiet autofocus capabilities, along with the ability to manually override focus at any time for more selective control.

Ultrawide-angle prime is designed for FX-format Nikon F-mount cameras, but can also be used with DX models where it provides a 30mm equivalent focal length.
Bright f/1.8 maximum aperture benefits working in low-light conditions.
Two extra-low dispersion glass elements are used in the optical construction to reduce a variety of chromatic aberrations and color fringing for a high degree of clarity and color neutrality.
Two aspherical elements are featured to control spherical aberrations and distortion in order to produce notable sharpness and resolution.
Nano Crystal and Super Integrated coatings have been applied to lens elements to minimize surface and internal reflections for a marked reduction in lens flare and ghosting.
Silent Wave Motor affords quick, quiet, and precise autofocus performance along with full-time manual focus override. A rear focusing design is also used, where only the rear lens group is moved during focusing, to maintain the overall length of the lens during use and to promote faster focusing speeds.
UPC: 018208200511

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

Focal Length
20mm
Aperture
Maximum: f/1.8
Minimum: f/16
Lens Mount
Nikon F
Lens Format Coverage
Full-Frame
Angle of View
94°
Minimum Focus Distance
7.9" / 20.1 cm
Magnification
1:4.35 Macro Reproduction Ratio
0.23x Magnification
Optical Design
13 Elements in 11 Groups
Aperture/Iris Blades
7, Rounded
Focus Type
Autofocus
Image Stabilization
No
Filter Size
77 mm (Front)
Dimensions
ø: 3.25 x L: 3.17" / ø: 82.5 x L: 80.5 mm
Weight
12.52 oz / 355 g
Packaging Info
Package Weight
1.37 lb
Box Dimensions (LxWxH)
8.15 x 5.1 x 4.9"

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

Exceptional Lens

By Sharon
Rated 5 out of 5
Date: 2026-02-12

I had been dreaming of this lens for a year and finally purchase it from the Used Department in 9+ condition for a really good price. At first, I thought there was something wrong with the lens because there was a lot of distortion at the edges, but then realized I was shooting in an interior room with the lens wide open which was causing the issue. Breathing easier now and am super excited with the results of a few outdoor test photos. Excited to take this lens everywhere with me!

Nikon 20m 1.8

By Allen
Rated 5 out of 5
Date: 2025-05-07

Excellent lens for price.

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