Sigma 20mm f/1.4 DG HSM Art

Sigma 20mm f/1.4 Art

Lens Summary

Brand: Sigma

Also Known As: Sigma 20mm f/1.4 Art

Lens Type: Prime Lens

Format: Full Frame / FX

Focus: Autofocus

Lens Mount: Canon EF, Nikon F, Sigma SA

Release Date: 2015-10-16

MSRP Price: $899

Made in: Japan

Production Status: In Production

Lens Description: Truly wide and truly fast, the Nikon F mount 20mm f/1.4 DG HSM Lens is a member of the venerable Art series of Global Vision lenses from Sigma and pairs a sophisticated optical design with a robust physical construction. Comprised of 15 elements in 11 groups, the lens design includes two "F" Low Dispersion (FLD) elements, five Special Low Dispersion (SLD) elements, and two aspherical elements to significantly reduce chromatic and spherical aberrations, as well as limit distortion for clean, sharp, and evenly illuminated imagery. A Super Multi-Layer Coating has also been applied to minimize surface reflections, flare, and ghosting for increased contrast and color accuracy. The wide focal length and consistent image quality make this lens especially suitable for landscape, interior, architectural, and astrophotography applications, while the fast f/1.4 maximum aperture deems it ideal for natural and low-light shooting.


Sigma 20mm f/1.4 DG HSM Art Specifications

Lens Specifications
Lens TypePrime Lens
Focal Length20mm
Mount TypeCanon EF, Nikon F, Sigma SA
FormatFull Frame / FX
Compatible Format(s)Full Frame / APS-C
Compatible with TeleconvertersNo
Maximum Reproduction Ratio1:7.1
Optical Stabilization (Image Stabilization)No
Aperture Information
Aperture RingNo
Maximum Aperturef/1.4
Minimum Aperturef/16
Maximum Angle of View (Full Frame format)94.5°
Optical Information
Lens Elements15
Lens Groups11
Diaphragm Blades9 (Rounded)
Low Dispersion Glass Elements5
"F" Low Dispersion Glass Elemenets2
Aspherical Elements2
Nano CoatingNo
Super Multi-Layer CoatingYes
Focus Information
FocusAutofocus
Built-in Focus MotorYes
Hyper Sonic Motor (HSM)Yes
Physical Characteristics
Weather / Dust SealingNo
Mount MaterialMetal
Tripod CollarNo
Dimensions90.7 x 129.8mm
Weight950g
Other Information
Available in ColorsBlack

Lens Construction

Sigma 20mm f/1.4 DG HSM Art Lens Construction

MTF Chart

Sigma 20mm f/1.4 DG HSM Art MTF Chart

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