Sony E Autofocus

Sigma 20mm F1.4 DG HSM Art

Focal length: 20 mm
Aperture: f/1.4
Weight: 950 g
Filter diameter: –
Min. focus distance: 28 cm
Length: 130 mm

At a Glance

This full-frame Sony E-mount lens is an ultra-wide prime with a 20 mm focal length and an f/1.4 maximum aperture. At 950 g it is heavy. The minimum focus distance is 28 cm and the magnification 0.14x. It suits landscapes, architecture, interiors and the night sky.

Good for

Landscape
Architecture
Interiors
Night sky

Derived from the manufacturer data, not from our own tests. How we check

Technical Specifications

Min. focal length: 20 mm
Max. focal length: 20 mm
Max. aperture (min. zoom): f/1.4
Max. aperture (max. zoom): f/1.4
Min. aperture: f/16
Elements: 15
Groups: 11
Weight: 950 g (2.09 lb)
Filter diameter: –
Min. focus distance: 28 cm (11.02 in)
Max. magnification: 1:7.1 (0.14×)
Length: 130 mm (5.12 in)
Diameter: 91 mm (3.58 in)

Manufacturer data: sigma-global.com, sigmaphoto.com

Last checked: October 13, 2026 (against the manufacturer data) · How we check

Simulate depth of field and angle of view

Compare with other lenses

Which cameras does the Sigma 20mm F1.4 DG HSM Art fit?

The Sigma 20mm F1.4 DG HSM Art is a full-frame lens for Sony E-Mount cameras. On full-frame bodies it uses the whole sensor; on APS-C Sony E-Mount cameras its field of view equals 30 mm in full-frame terms.

Sony E-Mount cameras

Full frame:: Sony A7R VI,Sony A7 V,Sony FX2,Sony A1 II,Sony A9 III,Sony A7C II,Sony A7CR,Sony ZV-E1,Sony A7R V,Sony A7 IV,Sony A1,Sony FX3,Sony A7S III,Sony A7C,Sony FX6,Sony A7R IV (A7R IVA),Sony A9 II,Sony FX9,Sony A7 III,Sony A7R III (A7R IIIA),Sony A9,Sony A7R II,Sony A7S II,Sony A7 II,Sony A7S,Sony A7,Sony A7R
APS-C:: Sony ZV-E10 II,Sony A6700,Sony FX30,Sony ZV-E10,Sony A6600,Sony A6100,Sony A6400,Sony A6500,Sony A6300,Sony QX1 (ILCE-QX1),Sony A6000,Sony A5100,Sony A3500,Sony A5000,Sony A3000,Sony NEX-5T,Sony NEX-3N,Sony NEX-6,Sony NEX-5R,Sony NEX-F3,Sony NEX-7,Sony NEX-5N,Sony NEX-C3,Sony NEX-5,Sony NEX-3