Sigma 20mm ƒ/2 DG DN Contemporary Photography Lens with L-Mount

Sigma 20mm ƒ/2 DG DN Contemporary Photography Lens with L-Mount

Sigma · Contemporary

$699.00 MSRP

Key Features

  • Ultra-Wide Full Frame Coverage
  • ƒ/2 Maximum Aperture
  • Autofocus
  • 1:6.7 Maximum Magnification
  • De-clickable Aperture Ring

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In the Box

  • 1 × Front Cap LCF-62mm III
  • 1 × Lens Hood LH656-03
  • 1 × Magnetic Metal Lens Cap LCF62-01M
  • 1 × Rear Cap LCR II

Overview

The Sigma 20mm ƒ/2 DG DN Contemporary Photography Lens with L-Mount is an ultra-wide prime covering Full Frame sensors. Ultra-wide coverage takes in a whole room or a whole horizon from close in, which is why architectural and landscape photographers reach for it. A fast ƒ/2 maximum aperture separates subject from background and keeps shutter speeds up as the light falls, closing to ƒ/22. Autofocus lets the camera's own subject detection drive the lens, which is what makes it usable for tracking moving subjects and for video. It mounts via L-Mount. Closest focus is 8.7 in, for a maximum magnification of 1:6.7.

Features

Key Features

Ultra-Wide Full Frame Coverage

The lens covers Full Frame sensors. An ultra-wide field of view holds an entire landscape or interior in one frame, and is the range architectural and astro work depend on.

ƒ/2 Maximum Aperture

A fast ƒ/2 aperture separates a subject from its background and holds shutter speed up in poor light, and the lens closes to ƒ/22.

Autofocus

The lens focuses under the camera's control, so hybrid shooters can use the body's own subject detection and tracking rather than pulling focus by hand — the difference between catching a moving subject and losing it.

1:6.7 Maximum Magnification

A maximum magnification of 1:6.7 sets how large a small subject renders on the sensor, with a closest focus of 8.7 in.

De-clickable Aperture Ring

The aperture ring can be switched between clicked and clickless. Clicked stops give repeatable exposure by feel for stills; clickless allows a silent, stepless iris pull during video, which is why the switch matters to anyone shooting both.

Aperture Control

Hybrid Aperture Control

Aperture can be set either on the ring or electronically from the camera body, so the lens suits a photographer working from the barrel and a hybrid shooter driving exposure from the body without either giving anything up.

Mount & Build

L-Mount

The lens mounts via L-Mount, which sets the bodies it fits directly and those it reaches through an adapter.

Electronic Lens Communication

Contacts in the mount pass aperture, focus and focal length between lens and body, so exposure data is recorded to EXIF and in-camera corrections for distortion and vignetting apply automatically.

Weather-Sealed Construction

Seals at the mount and control rings resist dust and moisture, which matters for landscape and field sports work carried out in the open.