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Sigma 20mm f/2 DG DN Contemporary Lens for Sony E

BH #SI202E • MFR #490965
Sigma 20mm f/2 DG DN Contemporary Lens for Sony E
Key Features
  • E-Mount Lens/Full-Frame Format
  • Aperture Range: f/2 to f/22
  • One SLD and One FLD Element
  • Three Aspherical Elements
A sleek, compact, wide-angle prime, the Sony E-mount 20mm f/2 DG DN Contemporary Lens from Sigma provides excellent edge-to-edge sharpness in a stylish all-metal design. An ideal lens for landscapes, cityscapes, handheld vlogging, and video streaming, the lens provides a modestly bright f/2 maximum aperture for low-light performance and shallow depth of field control. Additionally, its fast maximum aperture makes it a natural choice for night sky and astrophotography. Regarding handling and focus, this lens features a stepping motor for quick, accurate, and quiet AF performance that suits both photo and video applications.
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Sigma 20mm f/2 DG DN Contemporary Overview

  • 1Description
  • 2Close-Focusing Wide-Angle Prime
  • 3
  • 4Refined Optics
  • 5Physical Design
  • 6Fast Closeup Focusing
  • 7All-Purpose Functionality
  • 8
By B&H Photo's
Close-Focusing Wide-Angle Prime
A sleek, compact, wide-angle prime, the Sony E-mount 20mm f/2 DG DN Contemporary Lens from Sigma provides excellent edge-to-edge sharpness in a stylish all-metal design. An ideal lens for landscapes, cityscapes, handheld vlogging, and video streaming, the lens provides a modestly bright f/2 maximum aperture for low-light performance and shallow depth of field control. Additionally, its fast maximum aperture makes it a natural choice for night sky and astrophotography. Regarding handling and focus, this lens features a stepping motor for quick, accurate, and quiet AF performance that suits both photo and video applications.
Refined Optics
  • As part of the Contemporary line within Sigma's Global Vision series, this lens is designed to achieve a balance between convenience and performance and meshes a compact, lightweight build and versatile handling with notable optical attributes.
  • The lens is constructed with one SLD glass element and one FLD glass element to correct chromatic aberration. It incorporates three high-precision aspherical elements, which reduces the total size and weight of the lens.
Physical Design
  • I-series lens emphasizing a sleek and stylish physical design built to the same operational standards of Sigma's Cine lenses, including a mechanical aperture ring, knurled metal components, and various switches and tactile controls for intuitive operation.
  • Wide-angle 20mm lens designed for full-frame Sony E-mount mirrorless cameras, however, can also be used with APS-C models where it provides a 30mm equivalent focal length.
  • Bright f/2 maximum aperture strikes and ideal balance between speed and size and manages to maintain a compact physical profile while also offering low-light performance and depth of field control.
  • Rounded nine-blade diaphragm contributes to a smooth and pleasing bokeh quality.
Fast Closeup Focusing
  • Integrated stepping motor realizes smooth and quiet autofocus. Full-time manual focus control can also be selected via an arc-type auto/manual focus switch. A newly designed linear/non-linear manual focus function is also available.
  • Minimum focusing distance of 8.7" for unique close-up shooting capabilities.
All-Purpose Functionality
  • All-metal body and high-precision metal parts with a dust- and moisture-resistant lens mount for increased protection from the elements.
  • Metal lens hood helps to reduce lens flare when working in strong lighting conditions and also offers some protection to the front element of the lens.
  • Compatible with optional CH-11 Magnetic Cap Holder, which features a mini-carabiner for clipping to a bag, jacket, or belt loop.

Sigma 20mm f/2 DG DN Contemporary Specs

Key Specs
Focal Length
20mm
Maximum Aperture
f/2
Lens Mount
Sony E
Lens Format Coverage
Full-Frame
Focus Type
Autofocus
Image Stabilization
No
Filter Size
62 mm (Front)
Maximum Aperture
f/2
Minimum Aperture
f/22
Lens Mount
Sony E
Lens Format Coverage
Full-Frame
Angle of View
94.5°
Minimum Focus Distance
8.7" / 22 cm
Maximum Magnification
0.15x
Macro Reproduction Ratio
1:6.7
Optical Design
13 Elements in 11 Groups
Diaphragm Blades
9, Rounded
Focus Type
Autofocus
Image Stabilization
No
Filter Size
62 mm (Front)
Dimensions (ø x L)
2.8 x 2.9" / 70 x 74.4 mm
Weight
13.1 oz / 370 g
Packaging Info
Package Weight
1.505 lb
Box Dimensions (LxWxH)
7.3 x 4.2 x 4"

Sigma 20mm f/2 DG DN Contemporary Reviews

See any errors on this page? Let us know

How do I adept my 82mm ND filter for this lens?

How do I adept my 82mm ND filter for this lens?
Asked by: Donald G.
Sigma 20mm f/2 DG DN Contemporary Lens for Sony E accepts 62mm filters so you will need an adapter like this. https://www.bhphotovideo.com/c/product/809639-REG/Sensei_sur6282_62_82mm_Step_Up_Ring.html
Answered by: Daniel C
Date published: 2022-11-22

Is it's aperture ring can be de-clicked?

Is it's aperture ring can be de-clicked?
Asked by: Tempei
No, the Sigma 20mm f/2 DG DN Contemporary Lens for Sony E does not have a de-clicked aperture ring.
Answered by: Rob K
Date published: 2022-11-22

What is meant by " linear/non-linear manual focus ...

What is meant by " linear/non-linear manual focus function"? Is this similar to the linear focus feature on Lumix S Pro lenses?
Asked by: David
According to Sigma, non-linear focus would have a variable amount of focal point movement depending on the focus ring rotation speed. With linear focus, the amount of focal point movement remains the same regardless of the focal point moment and if the focal ring rotation angle is the same.
Answered by: Kirk
Date published: 2022-11-22
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