The Sigma 20mm f/1.4 DG DN Art Lens is an ultrawide prime lens designed for full-frame Sony E-mount mirrorless cameras. Ideal for landscape, architecture, and astrophotography, it delivers edge-to-edge sharpness, minimal distortion, and excellent low-light performance. Key features include a Manual Focus Lock (MFL) switch, rear filter holder, and 82mm front filter threads for creative flexibility.
Key Features
Fast f/1.4 maximum aperture for low-light performance and shallow depth of field
Wide 20mm prime lens (30mm equivalent on APS-C)
Two SLD and three aspherical elements for superior chromatic correction
Concave double-sided aspherical element for outstanding edge-to-edge sharpness
Optimized sagittal coma control for astrophotography
Super Multilayer Coating reduces flare and ghosting
Inner focus system with STM stepping motor for fast, near-silent autofocus
Manual Focus Lock (MFL) switch for stable focus during long exposures
Aperture ring with click and lock switches
Rounded 11-blade diaphragm for smooth bokeh
Petal-shaped lens hood for flare reduction and front element protection
82mm front filter threads plus rear filter holder for sheet-type filters
Curved front lip for optional lens heater attachment
Durable brass bayonet mount for precision and reliability
Compatible with AF Assist function on select Sony E-Mount cameras
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
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