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

BH #NI2018 • MFR #20051
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 ultra-wide, 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 ultra-wide, 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.

Ultra wide-angle prime is designed for FX-format Nikon F-mount cameras, however 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 has 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 Length20mm
Maximum Aperturef/1.8
Minimum Aperturef/16
Lens MountNikon F
Format CompatibilityFull-Frame
Angle of View94°
Minimum Focus Distance7.87" / 20 cm
Maximum Magnification0.23x
Optical Design13 Elements in 11 Groups
Diaphragm Blades7, Rounded
Focus TypeAutofocus
Image StabilizationNone
Filter Size77 mm (Front)
Dimensions (ø x L)3.25 x 3.17" / 82.5 x 80.5 mm
Weight12.52 oz / 355 g
Packaging Info
Package Weight1.37 lb
Box Dimensions (LxWxH)8.15 x 5.1 x 4.9"
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With this lens, if I shoot a photo with a tall building on the left side and the right side of the photo, will they lean inward like two Towers of Pisa? Im looking for a wide-angle lens to stop this kind of distortion.
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Will this lens auto-focus with my D3100 camera body?
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Yes. Keep in mind that this is an FX lens. The 20mm field of view will be closer to a 35mm field of view because of the D3100 DX crop sensor).The downside for your setup is that you won't be getting a true ultra-wide image. The upside is that you will be getting the sweet spot of any FX lens; the center.
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Yes this lens is compatible with the Nikon D3500, with a crop factor of 1.5X applied to the focal length.
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