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


The AF-S NIKKOR 20mm f/1.8G ED from Nikon is a wide-angle lens that is compatible with both full frame FX and DX crop sensor cameras.
The fast f/1.8 maximum aperture allows a shallow depth of field for selective focus use, as well as shooting in low-light situations.

The lens provides a 94° angle of view (30mm, 70° equivalent on DX-format cameras), and has a minimum focus distance of 7.8", allowing you to
get close to your subject while isolating it from the background.

Two aspherical and two Extra-low Dispersion elements with Nano Crystal Coating reduce sagittal flare and chromatic aberration, producing sharp
images throughout the frame. Nikon's Rear Focusing System eliminates change in physical length of the lens when focusing. A Silent Wave Motor
provides quick, near-silent autofocusing. A soft pouch and lens hood are included.


SPEC :

Performance
Focal Length     20mm
Comparable 35mm Equivalent on DX Format Focal Length: 30 mm
Aperture     Maximum: f/1.8
Minimum: f/16
Camera Mount Type     Nikon F
Format Compatibility     35mm Film / Full-Frame Digital Sensor
APS-C
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
Features
Image Stabilization     No
Autofocus     Yes
Tripod Collar     No
Physical
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)
Packaging Info
Package Weight     1.4 lb
Box Dimensions (LxWxH)     8.031 x 5.197 x 5.039"