The Sigma 20mm f/1.4 DG DN Art Lens is an ultrawide prime lens designed for Leica L-mount full-frame mirrorless cameras. Engineered for landscape, architecture, and astrophotography, this lens delivers edge-to-edge sharpness, minimal distortion, and excellent low-light performance. Unique features such as the Manual Focus Lock (MFL) switch, rear filter holder, and 82mm front filter threads make it a versatile tool for creative and professional imaging.
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 exceptional 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 to prevent focus changes 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 filters
Curved front lip for optional lens heater attachment
Durable brass bayonet mount for precision and reliability
Compatible with optional UD-11 USB Dock for firmware updates and customization
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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