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Sigma 20mm F1.4 DG HSM A Leica L 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.
  • Diameter: 91mm
  • Length: 130mm
  • Min Focus Distance:0.3m
  • Max Magnification:0.14x
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Sigma 20mm F1.4 DG HSM A Overview

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

Lens Mount

Sigma 20mm F1.4 DG HSM A is compatible with cameras that have Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Sigma fp L, Leica SL2-S and Panasonic S5.

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

Focal Range

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

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 is the eight most popular comparisons of 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
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35mm FF 373gr AF Amazon B&H Photo
Sigma 20mm F2 DG DN C Lens Sigma 20mm F2 DG DN C
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35mm FF 370gr AF Amazon B&H Photo
Panasonic Lumix S 24mm F1.8 Lens Panasonic Lumix S 24mm F1.8
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35mm FF 310gr AF Amazon B&H Photo
Sigma 16mm F1.4 DC DN Lens Sigma 16mm F1.4 DC DN
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APS-C / DX 405gr AF Amazon B&H Photo
Sigma 24mm F1.4 DG HSM A Lens Sigma 24mm F1.4 DG HSM A
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35mm FF 665gr AF Amazon B&H Photo
Sigma 24mm F3.5 DG DN C Lens Sigma 24mm F3.5 DG DN C
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35mm FF 225gr AF Amazon B&H Photo
Sigma 24mm F2 DG DN C Lens Sigma 24mm F2 DG DN C
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35mm FF 365gr 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 0gr AF Amazon B&H Photo

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**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.

Pros and Cons of Sigma 20mm F1.4 DG HSM A


PROs
Built-in Autofocus
Hood supplied
Full-time Manual Focusing
Very Fast Aperture
Covers Full-Frame Sensor

CONs
No Weather Sealing
Sigma 20mm F1.4 DG HSM A Alternatives in Leica L Mount
Model Coverage Weight Focusing Street Price
Panasonic Lumix S 24mm F1.8 Lens Panasonic Lumix S 24mm F1.8
Compare
35mm FF 310gr AF Amazon B&H Photo
Sigma 24mm F1.4 DG HSM A Lens Sigma 24mm F1.4 DG HSM A
Compare
35mm FF 665gr AF Amazon B&H Photo
Sigma 20mm F2 DG DN C Lens Sigma 20mm F2 DG DN C
Compare
35mm FF 370gr AF Amazon B&H Photo
Sigma 16mm F1.4 DC DN Lens Sigma 16mm F1.4 DC DN
Compare
APS-C / DX 405gr AF Amazon B&H Photo
Sigma 24mm F3.5 DG DN C Lens Sigma 24mm F3.5 DG DN C
Compare
35mm FF 225gr AF Amazon B&H Photo
Sigma 24mm F2 DG DN C Lens Sigma 24mm F2 DG DN C
Compare
35mm FF 365gr AF Amazon B&H Photo

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
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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
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