Sigma 20mm F2 DG DN | C

As one of the company’s Contemporary lenses, the new Sigma 20mm F2 DG DN | C is claimed to deliver uncompromised optical performance while maintaining a compact and lightweight form. And as one of the firm’s I series optics, it also has an all-metal barrel made from precision-cut aluminium, plus weather-sealing for greater durability. It makes for a pretty enticing-sounding lens, but does it really deliver on all that promise?

Features

Sigma has designed the 20mm F2 DG DN | C for use on full-frame mirrorless cameras and it’s available with either the L-mount for Leica, Lumix and Sigma cameras, or Sony E mount.

With a focal length of 20mm, it falls into the ultra-wideangle category and its large maximum aperture