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SKU
305795
MPN
414969
UPC
198983414690

Sigma 20mm f/1.4 DG DN Art Lens for Leica L

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  • Full-frame L-mount lens with a fast f/1.4–f/16 aperture range
  • Two SLD elements minimize chromatic aberration for crisp image quality
  • Three aspherical elements provide excellent sharpness and reduced distortion
  • Super Multilayer Coating enhances contrast and reduces flare and ghosting
  • Stepping AF motor with manual focus lock (MFL) switch for precise control
  • Rounded 11-blade diaphragm delivers smooth, pleasing bokeh
  • Large 82mm front filter thread for creative filter options
  • Rear filter holder offers additional flexibility for specialty filters
  • Durable brass bayonet mount ensures long-lasting reliability

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
In the Box
  • Sigma 20mm f/1.4 DG DN Art Lens for Leica L
  • Sigma Lens Hood for 20mm f/1.4 Art DG DN Lens
  • Sigma LCF-82 III 82mm Front Lens Cap
  • Sigma LCR II Rear Lens Cap for Leica L
  • GP-21 Guide Plate
  • Limited 4-Year Manufacturer Warranty
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More Information
SKU305795
BrandsSigma
MPN414969
UPC198983414690
Product ConditionNew
Specifications
Sigma 20mm f/1.4 DG DN Art Specs
Focal Length 20mm
Maximum Aperture f/1.4
Minimum Aperture f/16
Lens Mount L-Mount
Lens Format Coverage Full-Frame
Angle of View 94.5°
Minimum Focus Distance 9.1" / 23 cm
Magnification 1:6.1 Macro Reproduction Ratio
0.16x Magnification
Optical Design 17 Elements in 15 Groups
Aperture/Iris Blades 11, Rounded
Focus Type Autofocus
Image Stabilization No
Filter Size 82 mm (Front), Gel Filter (Rear)
Dimensions ø: 3.5 x L: 4.4" / ø: 87.8 x L: 111.2 mm
Weight 22.4 oz / 635 g
Package Weight 2.665 lb
Box Dimensions (LxWxH) 10.9 x 6 x 5.9"
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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