CameraDecision
  • CAMERAS
    • All Cameras
    • Cameras by Brand
      • Sony Cameras
      • Canon Cameras
      • Nikon Cameras
      • Pentax Cameras
      • Fujifilm Cameras
      • Olympus Cameras
      • Panasonic Cameras
      • Leica Cameras
      • Samsung Cameras
    • Cameras by Body Type
      • Mirrorless Cameras
      • DSLR Cameras
      • Compact Cameras
      • Bridge Cameras
      • Waterproof Cameras
    • Cameras by Lens Mount
      • Sony E Mount Cameras
      • Canon RF Mount Cameras
      • Nikon Z Mount Cameras
      • Micro Four Thirds Mount Cameras
      • Fujifilm X Mount Cameras
      • Leica L Mount Cameras
      • Nikon F Mount Cameras
      • Canon EF Mount Cameras
      • Canon EF M Mount Cameras
      • Canon EF S Mount Cameras
      • Pentax KAF Mount Cameras
      • Sony Alpha Mount Cameras
      • Fujifilm G Mount Cameras
      • Sigma SA Mount Cameras
      • Nikon 1 Mount Cameras
  • LENSES
    • All Lenses
    • Lenses by Mount
      • Sony E Mount Lenses
      • Canon RF Mount Lenses
      • Nikon Z Mount Lenses
      • Canon EF Mount Lenses
      • Canon EF M Mount Lenses
      • Canon EF S Mount Lenses
      • Nikon F Mount Lenses
      • Fujifilm X Mount Lenses
      • Micro Four Thirds Mount Lenses
      • Leica L Mount Lenses
      • Pentax KAF Mount Lenses
      • Fujifilm G Mount Lenses
      • Sigma SA Mount Lenses
      • Sony Alpha Mount Lenses
    • Teleconverters
    • Cinema Lenses
      • Sony E Mount Cine Lenses
      • Canon RF Mount Cine Lenses
      • Nikon Z Mount Cine Lenses
      • Canon EF Mount Cine Lenses
      • Nikon F Mount Cine Lenses
      • ARRI PL Mount Cine Lenses
      • Fujifilm X Mount Cine Lenses
      • Micro Four Thirds Mount Cine Lenses
      • Leica L Mount Cine Lenses
  • TOOLS
    • Cameras
      • Smart Find
      • 1-on-1 Comparison
    • Lenses
      • Smart Find
      • 1-on-1 Comparison
  • BLOG

Sigma 20mm F1.4 DG HSM A L Mount Review

Sigma 20mm F1.4 DG HSM A

Main Features

  • 20mm Focal Range
  • F1.4 Max Aperture
  • Max Format: 35mm FF
  • Leica L Mount
  • Weight: 950g / 2.09 lb
  • Dimensions(øxL): 91mm x 130mm
  • Min Focus Distance: 0.3m
  • Max Magnification: 0.14x
CHECK PRICE
CHECK PRICE
Compare To
x
Add a Lens for comparison

Sigma 20mm F1.4 DG HSM A Overview


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

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

The type of photography that you are planning to use the Sigma 20mm F1.4 DG HSM 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

Reasons to Buy Sigma 20mm F1.4 DG HSM A Lens

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

PROs
Autofocus
Distance Scale
Hood supplied
Full-time Manual Focusing
Very Fast Aperture
Covers Full-Frame Sensor
9 Diaphragm Blades for Smooth Bokeh
Report a correction

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


CONs
No Weather Sealing


Lens Mount

Sigma 20mm F1.4 DG HSM A is compatible with cameras that have a Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Panasonic S5 II, Panasonic S5 II X and Sigma fp L.

Panasonic S5 II with Sigma 20mm F1.4 DG HSM A Lens Size
Panasonic S5 II with the Sigma 20mm F1.4 DG HSM A Lens
Panasonic S5 II X with Sigma 20mm F1.4 DG HSM A Lens Size
Panasonic S5 II X with the Sigma 20mm F1.4 DG HSM A Lens
Sigma fp L with Sigma 20mm F1.4 DG HSM A Lens Size
Sigma fp L with the Sigma 20mm F1.4 DG HSM A Lens

Sigma 20mm F1.4 DG HSM A is also available in Canon EF , Nikon F (FX) and Sigma SA mounts.

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 HSM A has a maximum diameter of 91mm and total length of 130mm. It weighs 950g / 33.5 oz.

Below you can find a scaled side-by-side image of Sigma 20mm F1.4 DG HSM 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 HSM A vs Sony FE 20mm F1.8 G Lens Size Comparison
Comparison image of the Sigma 20mm F1.4 DG HSM A and the Sony FE 20mm F1.8 G Size and Weight




Focal Range

Sigma 20mm F1.4 DG HSM A has a fixed focal length of 20mm.


Optical Image Stabilization

Sigma 20mm F1.4 DG HSM 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 HSM A has a Max Magnification Ratio of 0.14x and has a minimum focusing distance of 0.3m. 0.14x means that the max magnification ratio is very low and not suitable even for modest close-up shots.

Below are the 3 Ultra-Wideangle Prime type Leica L mount lens alternatives with highest max magnification ratios:

  • Sigma 20mm F2 DG DN C: 0.15x - (Compare)
  • Sigma 14mm F1.8 DG HSM Art: 0.1x - (Compare)
  • Sigma 14mm F1.4 DG DN: 0.08x - (Compare)

Aperture

Sigma 20mm F1.4 DG HSM A has a max aperture of F1.4.

Optical Formula

Sigma 20mm F1.4 DG HSM A's optical formula consists of 15 elements in 11 groups . Following special elements are used in this design:

  • Two FLD
  • five SLD elements
  • Super Multi-Layer coating

Lens Hood

Sigma 20mm F1.4 DG HSM A comes with a removable lens hood which is handy to reduce lens flare and glare in your photos.

Body Colour

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

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

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

Top Alternatives of Sigma 20mm F1.4 DG HSM 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
Sigma 20mm F1.4 DG DN Art Lens Sigma 20mm F1.4 DG DN Art
Compare
35mm FF 635 g / 1.40 lb AF Amazon B&H Photo
Sigma 20mm F2 DG DN C Lens Sigma 20mm F2 DG DN C
Compare
35mm FF 370 g / 0.81 lb AF Amazon B&H Photo
Sigma 16mm F1.4 DC DN Lens Sigma 16mm F1.4 DC DN
Compare
APS-C / DX 405 g / 0.89 lb AF Amazon B&H Photo
Panasonic Lumix S 18mm F1.8 Lens Panasonic Lumix S 18mm F1.8
Compare
35mm FF 340 g / 0.75 lb AF Amazon B&H Photo
Panasonic Lumix S 24mm F1.8 Lens Panasonic Lumix S 24mm F1.8
Compare
35mm FF 310 g / 0.68 lb AF Amazon B&H Photo
Sigma 28mm F1.4 DG HSM A Lens Sigma 28mm F1.4 DG HSM A
Compare
35mm FF 960 g / 2.11 lb AF Amazon B&H Photo
Sigma 24mm F1.4 DG DN Art Lens Sigma 24mm F1.4 DG DN Art
Compare
35mm FF 520 g / 1.14 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 HSM A Alternatives in Leica L Mount
Model Coverage Weight Focusing Street Price
Panasonic Lumix S 18mm F1.8 Lens Panasonic Lumix S 18mm F1.8
Compare
35mm FF 340 g / 0.75 lb AF Amazon B&H Photo
Panasonic LUMIX S 14-28mm F4-5.6 Macro Lens Panasonic LUMIX S 14-28mm F4-5.6 Macro
Compare
35mm FF 345 g / 0.76 lb AF Amazon B&H Photo
Leica APO-Summicron-SL 28mm F2 ASPH Lens Leica APO-Summicron-SL 28mm F2 ASPH
Compare
35mm FF 700 g / 1.54 lb AF Amazon B&H Photo
Panasonic Lumix S 24mm F1.8 Lens Panasonic Lumix S 24mm F1.8
Compare
35mm FF 310 g / 0.68 lb AF Amazon B&H Photo
Sigma 28mm F1.4 DG HSM A Lens Sigma 28mm F1.4 DG HSM A
Compare
35mm FF 960 g / 2.11 lb AF Amazon B&H Photo
Sigma 24mm F1.4 DG HSM A Lens Sigma 24mm F1.4 DG HSM A
Compare
35mm FF 665 g / 1.46 lb AF Amazon B&H Photo
Sigma 14mm F1.8 DG HSM Art Lens Sigma 14mm F1.8 DG HSM Art
Compare
35mm FF 1170 g / 2.57 lb AF Amazon B&H Photo
Sigma 20mm F2 DG DN C Lens Sigma 20mm F2 DG DN C
Compare
35mm FF 370 g / 0.81 lb AF Amazon B&H Photo
Sigma 16-28mm F2.8 DG DN C Lens Sigma 16-28mm F2.8 DG DN C
Compare
35mm FF 450 g / 0.99 lb AF Amazon B&H Photo
Sigma 20mm F1.4 DG DN Art Lens Sigma 20mm F1.4 DG DN Art
Compare
35mm FF 635 g / 1.40 lb AF Amazon B&H Photo
Sigma 24mm F1.4 DG DN Art Lens Sigma 24mm F1.4 DG DN Art
Compare
35mm FF 520 g / 1.14 lb AF Amazon B&H Photo
Sigma 14-24mm F2.8 DG DN Art Lens Sigma 14-24mm F2.8 DG DN Art
Compare
35mm FF 795 g / 1.75 lb AF Amazon B&H Photo
Sigma 16mm F1.4 DC DN Lens Sigma 16mm F1.4 DC DN
Compare
APS-C / DX 405 g / 0.89 lb AF Amazon B&H Photo
Sigma 23mm F1.4 DC DN C Lens Sigma 23mm F1.4 DC DN C
Compare
APS-C 340 g / 0.75 lb AF Amazon B&H Photo
Sigma 17mm F4 DG DN C Lens Sigma 17mm F4 DG DN C
Compare
35mm FF 225 g / 0.50 lb AF Amazon B&H Photo
Sigma 14mm F1.4 DG DN Lens Sigma 14mm F1.4 DG DN
Compare
35mm FF 1170 g / 2.57 lb AF Amazon B&H Photo
Sigma 24mm F3.5 DG DN C Lens Sigma 24mm F3.5 DG DN C
Compare
35mm FF 225 g / 0.50 lb AF Amazon B&H Photo
Sigma 24mm F2 DG DN C Lens Sigma 24mm F2 DG DN C
Compare
35mm FF 365 g / 0.80 lb AF Amazon B&H Photo

Related Blog Posts

Nikon Z Mount Lens Roadmap Updated, One More f1.2 Lens to Come
Nikon Zf Size with 30 different Z-Mount Lenses Attached: Most Compact to Largest
Nikon 135mm F1.8 Plena vs 58mm F0.95 Noct Lens Sizes Comparison
Nikon Z 135mm F1.8 S Plena vs Canon RF 135mm F1.8 L IS USM vs Sony FE 135mm F1.8 GM Lenses Size And Feature Comparison
A 500mm F6.3 Full frame lens for only $329?
Tamron 17-50mm f/4 Di III VXD Lens Available for Pre-Order. And Yes, It is a Full-frame Lens
Fujifilm GF 110mm F5.6 T/S, 30mm F5.6 T/S and 55mm F1.7 Lenses: Medium Format comes with a Price tag
Panasonic Releases Updated 100-400mm and 35-100mm Lenses for MFT Cameras

Sigma 20mm F1.4 DG HSM A Detailed Specifications


General
Brand Sigma
Lens Type Prime
Lens Type Wideangle Prime
Lens Mount Leica L
Max Format 35mm FF
Focal Range 20mm
Image Stabilization No
Colour Black
Zoom Method No Zoom
Power Zoom No Zoom
Zoom Lock No Zoom
Zoom Ratio 1.0X
APERTURE
Max Aperture F1.4
Min Aperture
Aperture Ring No
Diaphragm Blades 9
Optics
Optical Elements 15
Optical Groups 11
Special Elements Two FLD, five SLD elements + Super Multi-Layer coating

FOCUSING
Min Focus Distance 0.3m
Max Magnification 0.14X
Autofocus Yes
AF Motor Type Ring-type ultrasonic
Full Time Manual Yes
Focus Method Internal
Distance Scale Yes
DoF Scale No
PHYSICAL SPECS
Weight 950g
Diameter 91mm
Length 130mm
Weather Sealing No
Filter Thread Unknown
Filter Notes -
Hood Supplied Yes
Tripod Collar No
Report a Correction
Frequently Asked Questions about Sigma 20mm F1.4 DG HSM A
is the Sigma 20mm F1.4 DG HSM A a Weather-sealed lens?
What is the Minimum Focusing Distance of Sigma 20mm F1.4 DG HSM A
is the Sigma 20mm F1.4 DG HSM A an Autofocus (AF) lens?
What is the Filter Thread Size of Sigma 20mm F1.4 DG HSM A
Does Sigma 20mm F1.4 DG HSM A have Image Stabilization?
Does Sigma 20mm F1.4 DG HSM A have Aperture Ring?
What is the Maximum Magnification Ratio of Sigma 20mm F1.4 DG HSM A


FOLLOW US


Latest Leica L Lenses
Sigma 14mm F1.4 DG DN
Sigma 14mm F1.4 DG DN
Leica L | F1.4 Wideangle Prime
Sigma 50mm F2 DG DN C
Sigma 50mm F2 DG DN C
Leica L | F2.0 Standard Prime
Sigma 17mm F4 DG DN C
Sigma 17mm F4 DG DN C
Leica L | F4.0 Wideangle Prime
Sigma 23mm F1.4 DC DN C
Sigma 23mm F1.4 DC DN C
Leica L | F1.4 Wideangle Prime
Leica Vario-Elmar-SL 100-400 f5-6.3
Leica Vario-Elmar-SL 100-400 f5-6.3
Leica L | F5-6.3 Telephoto Zoom
Leica Summicron-SL 50mm f2 ASPH
Leica Summicron-SL 50mm f2 ASPH
Leica L | F2.0 Standard Prime
Leica Summicron-SL 35mm f2 ASPH
Leica Summicron-SL 35mm f2 ASPH
Leica L | F2.0 Standard Prime
Sigma 50mm F1.4 DG DN Art
Sigma 50mm F1.4 DG DN Art
Leica L | F1.4 Standard Prime
Sigma 60-600mm F4.5-6.3 DG DN OS
Sigma 60-600mm F4.5-6.3 DG DN OS
Leica L | F4.5-6.3 Telephoto Zoom
Panasonic LUMIX S 14-28mm F4-5.6 Macro
Panasonic LUMIX S 14-28mm F4-5.6 Macro
Leica L | F4-5.6 Wideangle Zoom
Latest Compatible Cameras
Panasonic S5 II
Panasonic S5 II
24 MP | Full frame CMOS
Panasonic S5 II X
Panasonic S5 II X
24 MP | Full frame CMOS
Sigma fp L
Sigma fp L
61 MP | Full frame BSI-CMOS
Leica SL2-S
Leica SL2-S
24 MP | Full frame BSI-CMOS
Panasonic S5
Panasonic S5
24 MP | Full frame CMOS
Copyright © 2023 by CameraDecision
Privacy About Contact Us SpeakerDecision LaptopDecision

Report a Correction