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DISCONTINUED

ART

20mm F1.4 DG HSM

Available mounts

L-Mount

Sigma SA-mount

Nikon F mount

SONY E-MOUNT

Canon EF mount

SONY E-MOUNT

Canon EF mount

SONY E-MOUNT

Canon EF mount

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Specifications

Features

Construction

Technology

Sample Images

Camera Type

DSLR

Corresponding Mount

L-Mount, Sony E-mount, SIGMA SA-mount, Canon EF mount, Nikon F mount

Sensor Format

Full-frame [DG]

Lens Construction

15 elements in 11 groups

Angle of View

94.5°

Number of Diaphragm Blades

9 (rounded diaphragm)

Minimum aperture

F16

Minimum focusing distance

27.6 cm / 10.9 in.

Maximum magnification ratio

1:7.1

Filter Size

φ62mm

Dimensions (Diameter x Length)

SIGMA SA-mount:φ90.7mm × 129.8mm / φ3.6in. × 5.1in.

Sony E-mount:φ90.7mm × 155.8mm / φ3.6in. × 6.1in.

L-Mount:φ90.7mm × 153.75mm / φ3.5in. × 6in.

*The length of a lens is measured from the filter surface to its mount.

Weight

SIGMA SA-mount:950g / 33.5oz.

Sony E-mount:1,015g / 35.8oz.

L-Mount:1,035g / 36.5oz.

Edition number

A015


The three-digit code on the surface of the lens is to indicate the year the lens was first released.
(Since it is different from the year of manufacture, the release year and edition number may not match depending on the mount.)

Supplied Accessories

・Case
・COVER LENS CAP LC907-01
・REAR CAP LCR II

Mount / Product Barcode

SIGMA SA-mount:00-85126-41256-2

Nikon F mount:00-85126-41255-5

Canon EF mount:00-85126-41254-8 (discontinued)

Sony E-mount:00-85126-41265-4

L-Mount:00-85126-41269-2

Camera Compatibility

* This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation. * L-Mount is a registered trademark of Leica Camera AG.

Specifications

Features

Construction

Technology

Sample Images

Camera Type

DSLR

Corresponding Mount

L-Mount, Sony E-mount, SIGMA SA-mount, Canon EF mount, Nikon F mount

Sensor Format

Full-frame [DG]

Lens Construction

15 elements in 11 groups

Angle of View

94.5°

Number of Diaphragm Blades

9 (rounded diaphragm)

Minimum aperture

F16

Minimum focusing distance

27.6 cm / 10.9 in.

Maximum magnification ratio

1:7.1

Filter Size

φ62mm

Dimensions (Diameter x Length)

SIGMA SA-mount:φ90.7mm × 129.8mm / φ3.6in. × 5.1in.

Sony E-mount:φ90.7mm × 155.8mm / φ3.6in. × 6.1in.

L-Mount:φ90.7mm × 153.75mm / φ3.5in. × 6in.

*The length of a lens is measured from the filter surface to its mount.

Weight

SIGMA SA-mount:950g / 33.5oz.

Sony E-mount:1,015g / 35.8oz.

L-Mount:1,035g / 36.5oz.

Edition number

A015


The three-digit code on the surface of the lens is to indicate the year the lens was first released.
(Since it is different from the year of manufacture, the release year and edition number may not match depending on the mount.)

Supplied Accessories

・Case
・COVER LENS CAP LC907-01
・REAR CAP LCR II

Mount / Product Barcode

SIGMA SA-mount:00-85126-41256-2

Nikon F mount:00-85126-41255-5

Canon EF mount:00-85126-41254-8 (discontinued)

Sony E-mount:00-85126-41265-4

L-Mount:00-85126-41269-2

Camera Compatibility

* This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation. * L-Mount is a registered trademark of Leica Camera AG.

Specifications

Features

Construction

Technology

Sample Images

Camera Type

DSLR

Corresponding Mount

L-Mount, Sony E-mount, SIGMA SA-mount, Canon EF mount, Nikon F mount

Sensor Format

Full-frame [DG]

Lens Construction

15 elements in 11 groups

Angle of View

94.5°

Number of Diaphragm Blades

9 (rounded diaphragm)

Minimum aperture

F16

Minimum focusing distance

27.6 cm / 10.9 in.

Maximum magnification ratio

1:7.1

Filter Size

φ62mm

Dimensions (Diameter x Length)

SIGMA SA-mount:φ90.7mm × 129.8mm / φ3.6in. × 5.1in.

Sony E-mount:φ90.7mm × 155.8mm / φ3.6in. × 6.1in.

L-Mount:φ90.7mm × 153.75mm / φ3.5in. × 6in.

*The length of a lens is measured from the filter surface to its mount.

Weight

SIGMA SA-mount:950g / 33.5oz.

Sony E-mount:1,015g / 35.8oz.

L-Mount:1,035g / 36.5oz.

Edition number

A015


The three-digit code on the surface of the lens is to indicate the year the lens was first released.
(Since it is different from the year of manufacture, the release year and edition number may not match depending on the mount.)

Supplied Accessories

・Case
・COVER LENS CAP LC907-01
・REAR CAP LCR II

Mount / Product Barcode

SIGMA SA-mount:00-85126-41256-2

Nikon F mount:00-85126-41255-5

Canon EF mount:00-85126-41254-8 (discontinued)

Sony E-mount:00-85126-41265-4

L-Mount:00-85126-41269-2

Camera Compatibility

* This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation. * L-Mount is a registered trademark of Leica Camera AG.

Incredible rendering
performance delivers
unprecedented visual experiences.
Enjoy enhanced control
of light and composition.

An ultra-wide-angle lenswith F1.4 brightness.

With a focal length of 20mm and F1.4 aperture, this lens delivers outstanding large-aperture brightness and bokeh, delivering unprecedented visual experiences.


Sigma has extensive experience in leveraging its advanced design capabilities and leading-edge technologies to craft large-aperture prime lenses that bring out the full potential of ultra-high-megapixel DSLRs. As its latest achievement in this category, Sigma has created an ultra-wide-angle lens with F1.4 brightness. With a focal length of 20mm and F1.4 aperture, this lens delivers outstanding large-aperture brightness and bokeh, delivering unprecedented visual experiences. Allowing the photographer to leverage the perspective provided by the wide -angle and the shallow depth of field provided by the large aperture, this lens is ideal not only for such ultra-wide-angle subjects as landscapes and starry skies, but also for snapshots in low light, indoor photography, portraits with a natural bokeh effect, and much more.


Art line delivers high-level artistic expression


Sigma is organizing all its interchangeable lenses into three product lines: Contemporary, Art, and Sports, each with a distinctive concept. Designed with a focus on sophisticated optical performance and abundant expressive power, our Art line lenses deliver high-level artistic expression. Offering astonishing rendering performance that meets the highest standard, they are perfect for landscapes, portraits, still-lifes, close-ups, and casual snaps. They are made for the kind of photography that unleashes the inner artist. A powerful ally in every genre of photography, Sigma’s Art line lenses excel both in the studio for formal works and outdoors for impressive shots of architecture, starry skies, and many other scenes.


Lens specifications