SIGMA 20mm f/1.4 DG HSM Art Lens for Sony E

Wide-angle prime for Sony E-mount

The Sigma 20mm f/1.4 DG HSM Art is a full-frame wide-angle prime lens built for Sony E-mount cameras. Its optical formula uses 15 elements in 11 groups, including two FLD elements, five SLD elements, and two aspherical elements to control aberrations and distortion. A Super Multi-Layer Coating reduces flare and ghosting for high contrast and colour accuracy. The Hyper Sonic Motor delivers fast, quiet autofocus with full-time manual focus override.

Landscape, architecture and low-light shooters

The 20mm focal length and f/1.4 maximum aperture suit photographers who need a broad field of view with shallow depth of field for astrophotography, interiors and environmental portraits. The rounded nine-blade diaphragm produces smooth background rendering. Buyers who need a longer focal length for distant subjects or a zoom lens for variable framing should consider other options.

Maximum aperture f/1.4

The f/1.4 aperture is the defining specification that determines low-light capability and depth-of-field control. It enables fast shutter speeds in dark conditions and strong subject separation at this wide angle. The aperture range extends to f/16 for deep depth-of-field requirements.