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Sigma 20mm F1.4 DG DN Art E Mount Review

Sigma 20mm F1.4 DG DN Art

Main Features

  • 20mm Focal Range
  • F1.4 Max Aperture
  • Filter Thread: 82mm
  • Max Format: 35mm FF
  • Sony E Mount
  • Weight: 635g / 1.40 lb
  • Dimensions(øxL): 88mm x 111mm
  • Min Focus Distance: 0.23m
  • Max Magnification: 0.16x
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Sigma 20mm F1.4 DG DN A Overview


Sigma 20mm F1.4 DG DN A is a Fixed aperture Auto Focus (AF) Wideangle Prime lens with 35mm FF max sensor coverage, and it is designed to be used with E Mount cameras.

What type of photography is the Sigma 20mm F1.4 DG DN A lens good for?

The type of photography that you are planning to use the Sigma 20mm F1.4 DG DN A is an important decision factor. Here we have evaluated its suitability to various photography scenarios:

Photography Type Suitability
Bird/WildlifePoor
SportsPoor
PortraitFair
TravelAverage
StreetExcellent
WeddingFair
Walk AroundAverage
VloggingVery Good
LandscapeGood
MacroPoor

Lenses in Sony E Mount with Same Focal and Aperture Range
Model Coverage Weight Focusing Street Price
Sony FE 24mm F1.4 GM Lens Sony FE 24mm F1.4 GM
Compare
35mm FF 445gr AF Amazon B&H Photo
Samyang 24mm f1.4 ED AS UMC Lens Samyang 24mm f1.4 ED AS UMC
Compare
35mm FF 580gr MF Amazon B&H Photo
Sigma 24mm F1.4 DG DN Art Lens Sigma 24mm F1.4 DG DN Art
Compare
35mm FF 520gr AF Amazon B&H Photo

Reasons to Buy Sigma 20mm F1.4 DG DN Art Lens

Here we've included a summary of the advantages and disadvantages of the Sigma 20mm F1.4 DG DN Art lens in a list form to help you determine whether it offers the features you need.

PROs
Autofocus
Aperture Ring
Hood supplied
Full-time Manual Focusing
Very Fast Aperture
Covers Full-Frame Sensor
11 Diaphragm Blades for Smooth Bokeh
Minimum focus distance of 0.23m / 9.1 inch
Report a correction

Buy Sigma 20mm F1.4 DG DN A from Amazon or B&H PHOTO


CONs
No Weather Sealing


Lens Mount

Sigma 20mm F1.4 DG DN A is compatible with cameras that have a Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony A9 III, Sony A7C Mark II and Sony A7CR.

Sony A7C Mark II with Sigma 20mm F1.4 DG DN A Lens Size
Sony A7C Mark II with the Sigma 20mm F1.4 DG DN A Lens
Sony A7CR with Sigma 20mm F1.4 DG DN A Lens Size
Sony A7CR with the Sigma 20mm F1.4 DG DN A Lens

Sigma 20mm F1.4 DG DN A is also available in Leica L mount.


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Size, Weight and Filter Thread

Size and weight is a very important decision factor when searching for your next lens. Sigma 20mm F1.4 DG DN A has a maximum diameter of 88mm and total length of 111mm. It weighs 635g / 22.4 oz.

Below you can find a scaled side-by-side image of Sigma 20mm F1.4 DG DN A and Sony FE 20mm F1.8 G (Sony E mount) to get a better idea of how their sizes compare in real life. Check the detailed comparison of these two lenses here.

Sigma 20mm F1.4 DG DN A vs Sony FE 20mm F1.8 G Lens Size Comparison
Comparison image of the Sigma 20mm F1.4 DG DN A and the Sony FE 20mm F1.8 G Size and Weight

Sigma 20mm F1.4 DG DN A has a filter thread of 82mm. Below are links to the filters that we recommend you to consider for your Sigma 20mm F1.4 DG DN A:

  • 82mm Variable ND Lens Filters
  • 82mm Circular Polarizer Lens Filters
  • 82mm Clear Protection Lens Filters




Focal Range

Sigma 20mm F1.4 DG DN A has a fixed focal length of 20mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 36mm.


Optical Image Stabilization

Sigma 20mm F1.4 DG DN A doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).

Maximum Magnification Ratio

Sigma 20mm F1.4 DG DN A has a Max Magnification Ratio of 0.16x and has a minimum focusing distance of 0.23m. 0.16x means that the max magnification ratio is very low and not suitable even for modest close-up shots.

Below are the 3 Wideangle Prime type Sony E mount lens alternatives with highest max magnification ratios:

  • Tamron 24mm F2.8 Di III OSD M1:2: 0.5x - (Compare)
  • Tamron 35mm F2.8 Di III OSD M1:2: 0.5x - (Compare)
  • Sigma 24mm F3.5 DG DN C: 0.5x - (Compare)

Aperture

Sigma 20mm F1.4 DG DN A has a max aperture of F1.4 and a minimum aperture of F16.

Optical Formula

Sigma 20mm F1.4 DG DN A's optical formula consists of 17 elements in 15 groups . Following special elements are used in this design:

  • 2 Super-Low Dispersion elements
  • 3 aspherical elements
  • Super Multi-Layer coating
  • Water- and oil-resistant coating

Lens Hood

Sigma 20mm F1.4 DG DN A comes with a removable lens hood which is handy to reduce lens flare and glare in your photos. The model number of the hood is LH898-04.

Body Colour

Sigma 20mm F1.4 DG DN A is available in Black color.

Popular Comparisons of Sigma 20mm F1.4 DG DN A

Here are the eight most popular comparisons of the Sigma 20mm F1.4 DG DN A amongst Camera Decision readers.

Top Alternatives of Sigma 20mm F1.4 DG DN A Lens
Model Coverage Weight Focusing Street Price
Sony FE 20mm F1.8 G Lens Sony FE 20mm F1.8 G
Compare
35mm FF 373 g / 0.82 lb AF Amazon B&H Photo
Sony FE 14mm F1.8 GM Lens Sony FE 14mm F1.8 GM
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35mm FF 460 g / 1.01 lb AF Amazon B&H Photo
Sigma 30mm F1.4 DC DN C Lens Sigma 30mm F1.4 DC DN C
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APS-C / DX 265 g / 0.58 lb AF Amazon B&H Photo
Sigma 28mm F1.4 DG HSM A Lens Sigma 28mm F1.4 DG HSM A
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35mm FF 925 g / 2.04 lb AF Amazon B&H Photo
Sony FE 24mm F1.4 GM Lens Sony FE 24mm F1.4 GM
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35mm FF 445 g / 0.98 lb AF Amazon B&H Photo
Sigma 24mm F1.4 DG DN Art Lens Sigma 24mm F1.4 DG DN Art
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35mm FF 520 g / 1.14 lb AF Amazon B&H Photo
ZEISS Loxia 21mm F2.8 Lens ZEISS Loxia 21mm F2.8
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35mm FF 394 g / 0.87 lb MF Amazon B&H Photo
Tamron 20mm F2.8 Di III OSD M1 2 Lens Tamron 20mm F2.8 Di III OSD M1 2
Compare
35mm FF 220 g / 0.48 lb AF Amazon B&H Photo


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate, I earn from qualifying purchases.

Sigma 20mm F1.4 DG DN Art Alternatives in Sony E Mount
Model Coverage Weight Focusing Street Price
Sony FE 20mm F1.8 G Lens Sony FE 20mm F1.8 G
Compare
35mm FF 373 g / 0.82 lb AF Amazon B&H Photo
Sony Carl Zeiss Sonnar T E 24mm F1.8 ZA Lens Sony Carl Zeiss Sonnar T E 24mm F1.8 ZA
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APS-C / DX 225 g / 0.50 lb AF Amazon B&H Photo
Sony FE 28mm F2 Lens Sony FE 28mm F2
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35mm FF 200 g / 0.44 lb AF Amazon B&H Photo
Sony E 20mm F2.8 Lens Sony E 20mm F2.8
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APS-C / DX 69 g / 0.15 lb AF Amazon B&H Photo
Sony E 30mm F3.5 Macro Lens Sony E 30mm F3.5 Macro
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APS-C / DX 138 g / 0.30 lb AF Amazon B&H Photo
Sony FE 24mm F2.8 G Lens Sony FE 24mm F2.8 G
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35mm FF 162 g / 0.36 lb AF Amazon B&H Photo
Sony FE 24mm F1.4 GM Lens Sony FE 24mm F1.4 GM
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35mm FF 445 g / 0.98 lb AF Amazon B&H Photo
Tamron 17-28mm F2.8 Di III RXD Lens Tamron 17-28mm F2.8 Di III RXD
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35mm FF 420 g / 0.92 lb AF Amazon B&H Photo
Tamron 20mm F2.8 Di III OSD M1 2 Lens Tamron 20mm F2.8 Di III OSD M1 2
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35mm FF 220 g / 0.48 lb AF Amazon B&H Photo
Tamron 24mm F2.8 Di III OSD M1-2 Lens Tamron 24mm F2.8 Di III OSD M1-2
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35mm FF 215 g / 0.47 lb AF Amazon B&H Photo
Sigma 20mm F2 DG DN C Lens Sigma 20mm F2 DG DN C
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35mm FF 370 g / 0.81 lb AF Amazon B&H Photo
Samyang AF 18mm F2.8 FE Lens Samyang AF 18mm F2.8 FE
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35mm FF 145 g / 0.32 lb AF Amazon B&H Photo
Samyang 24mm f1.4 ED AS UMC Lens Samyang 24mm f1.4 ED AS UMC
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35mm FF 580 g / 1.28 lb MF Amazon B&H Photo
Sigma 24mm F1.4 DG DN Art Lens Sigma 24mm F1.4 DG DN Art
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35mm FF 520 g / 1.14 lb AF Amazon B&H Photo
Samyang T-S 24mm f3.5 ED AS UMC Lens Samyang T-S 24mm f3.5 ED AS UMC
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35mm FF 680 g / 1.50 lb MF Amazon B&H Photo
Sigma 23mm F1.4 DC DN C Lens Sigma 23mm F1.4 DC DN C
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APS-C 330 g / 0.73 lb AF Amazon B&H Photo
Sigma 17mm F4 DG DN C Lens Sigma 17mm F4 DG DN C
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35mm FF 220 g / 0.48 lb AF Amazon B&H Photo
Zeiss Loxia 25mm F2.4 Lens Zeiss Loxia 25mm F2.4
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35mm FF 393 g / 0.86 lb MF Amazon B&H Photo
Tokina Firin 20mm F2 FE MF Lens Tokina Firin 20mm F2 FE MF
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Sigma 24mm F3.5 DG DN C Lens Sigma 24mm F3.5 DG DN C
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35mm FF 225 g / 0.50 lb AF Amazon B&H Photo
Samyang AF 24mm F1.8 FE Lens Samyang AF 24mm F1.8 FE
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35mm FF 230 g / 0.51 lb AF Amazon B&H Photo
Carl Zeiss Touit 1.832 Lens Carl Zeiss Touit 1.832
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Zeiss Batis 25mm F2 Lens Zeiss Batis 25mm F2
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35mm FF 93 g / 0.20 lb AF Amazon B&H Photo
Sigma 19mm F2.8 DN Lens Sigma 19mm F2.8 DN
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APS-C / DX 140 g / 0.31 lb AF Amazon B&H Photo
ZEISS Loxia 21mm F2.8 Lens ZEISS Loxia 21mm F2.8
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35mm FF 394 g / 0.87 lb MF Amazon B&H Photo
Sigma 24mm F2 DG DN C Lens Sigma 24mm F2 DG DN C
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Sigma 28mm F1.4 DG HSM A Lens Sigma 28mm F1.4 DG HSM A
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35mm FF 925 g / 2.04 lb AF Amazon B&H Photo
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Sigma 20mm F1.4 DG DN A Detailed Specifications


General
Brand Sigma
Lens Type Prime
Lens Type Wideangle Prime
Lens Mount Sony E
Max Format 35mm FF
Focal Range 20mm
Image Stabilization No
Colour Black
Zoom Method No Zoom
Power Zoom No
Zoom Lock No
Zoom Ratio 1.0X
APERTURE
Max Aperture F1.4
Min Aperture F16
Aperture Ring Yes
Diaphragm Blades 11
Optics
Optical Elements 17
Optical Groups 15
Special Elements Two Super-Low Dispersion elements, three aspherical elements, Super Multi-Layer coating, and water- and oil-resistant coating.

FOCUSING
Min Focus Distance 0.23m
Max Magnification 0.16X
Autofocus Yes
AF Motor Type Stepper motor
Full Time Manual Yes
Focus Method Internal
Focus Distance Limiter No
Distance Scale No
DoF Scale No
PHYSICAL SPECS
Weight 635g
Diameter 88mm
Length 111mm
Weather Sealing No
Filter Thread 82mm
Filter Notes Rear filter holder + front thread
Hood Supplied Yes
Hood Code LH898-04
Tripod Collar No
Report a Correction
Frequently Asked Questions about Sigma 20mm F1.4 DG DN Art
is the Sigma 20mm F1.4 DG DN Art a Weather-sealed lens?
What is the Minimum Focusing Distance of Sigma 20mm F1.4 DG DN Art
is the Sigma 20mm F1.4 DG DN Art an Autofocus (AF) lens?
What is the Filter Thread Size of Sigma 20mm F1.4 DG DN Art
Does Sigma 20mm F1.4 DG DN Art have Image Stabilization?
Does Sigma 20mm F1.4 DG DN Art have Aperture Ring?
What is the Maximum Magnification Ratio of Sigma 20mm F1.4 DG DN Art


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