20MM F1.4 DG DN | A

An Art level 20mm F1.4.
The ultimate lens for astrophotography.

Outstanding optical quality and a range of invaluable features –
The ultimate astrophotography lens from the 20mm F1.4 pioneer.

The SIGMA 20mm F1.4 DG DN | Art delivers exceptionally detailed results that easily satisfy the high demands of professional photography and other high-end applications

Lens Construction

17 elements in 15 groups

Angle of View

• 94.5 °

Number of Diaphragm Blades

11 (Rounded diaphragm)

Minimum Aperture

F16

Minimum Focusing Distance

23cm / 9.1in.

Maximum Magnification Ratio

1:6.1

Filter size

φ82mm

Dimensions (Diameter × Length)

• L-Mount
  φ87.8mm × 111.2mm / φ3.5in. × 4.4in.
• Sony E-Mount
  φ87.8mm × 113.2mm / φ3.5in. × 4.5in.

Weight

• L-Mount
  635g / 22.4oz.
• Sony E-Mount
  630g / 22.2oz.

Edition Number

A022

About Edition Number

Supplied Accessories

・Case
・Petal-type lens hood with lock (LH878-04)
・Front Cap (LCF-82 III)
・Rear Cap (LCRII)
・Guide Plate (GP-21)

Corresponding AF Mounts / Barcode No.

• L-Mount
  00-85126-41469-6
• Sony E-Mount
  00-85126-41465-8

Technologies

• Lens Heater Retainer

  The Lens Heater Retainer is a protruding lip at the front of the lens. When the…

• Rear filter holder

  The rear filter holder allows the attachment of a sheet-type filter to the rear…

• MFL switch

  The MFL (Manual Focus Lock) switch disengages the focus ring on the lens. After…

* The appearance and specifications of the product are subject to change.
* 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.