Overview

The Nikon AF-S Nikkor 20mm f/1.8G ED is a sharp, fast ultrawide prime praised for its optical performance, especially wide open, with minimal distortion and good sunstars. It is lighter and smaller than many comparable lenses, though build quality is not as rugged as higher-end primes. Autofocus is adequate but not the fastest, and manual focus has some slack. It suits landscape, astrophotography, and travel photographers seeking a lightweight, affordable ultrawide.