Sigma 20mm F1.4 DG DN – Art: Ultra-Fast, Ultra-Sharp, Ultra-Wide

The Perfect Prime for Landscapes, Travel, and Astro

The Sigma 20mm F1.4 DG DN | Art is a full-frame, ultra-wide-angle prime lens designed for mirrorless cameras. Ideal for night sky photography, landscapes, interiors, weddings, travel, and architecture, this lens features an ultra-wide F1.4 aperture, allowing for very fast shutter speeds in low-light conditions and a shallow depth-of-field for pronounced subject separation.

Equipped with a range of professional features, this lens includes an aperture ring with de-click and lock switches, an AFL button, a lockable lens hood, a rear filter holder, a Lens Heater Retainer, and a manual focus lock feature. Its advanced optical design, featuring two SLD elements and three aspherical elements (including the largest double-sided aspherical glass element in Sigmas history), ensures minimal chromatic aberration, sagittal coma flare, and image distortion. This results in highly detailed images with exceptional sharpness and accuracy from the centre to the edges of the frame.

Outstanding Build Quality

The Sigma 20mm F1.4 DG DN | Art boasts exceptional build quality, characteristic of Sigmas Art line, with top-tier materials, ergonomic design, and superior craftsmanship. The exterior barrel is made from Thermally Stable Composite (TSC), a strong and lightweight polycarbonate with a thermal expansion rate similar to aluminium, ensuring consistent performance as temperatures change.

The internal focusing mechanism keeps the lens length constant, making it ideal for use on a gimbal, as the centre of gravity remains stable. The rubberized focus ring enhances operation ease, and the aperture ring can be de-clicked for smooth aperture transitions. A lock switch secures the ring in Auto or Manual mode to prevent accidental adjustments.

A robust petal-type lens hood with a lock button and rubberized ring helps reduce flare and ghosting in bright light while protecting the front element from damage. The durable brass mount features a rubber seal to keep out dust and moisture, ensuring reliable performance in various conditions.

Professional Feature Set

The lens includes a variety of professional-grade controls: an AF/MF switch, a customizable AFL button, and switches to de-click and lock the aperture ring. The Manual Focus Lock switch deactivates the focus ring after focus is set, preventing accidental focus shifts.

The powerful stepping motor ensures fast, accurate, and quiet autofocus, with excellent tracking capability, making it suitable for both still photography and video recording.

Rear Filter Holder

In addition to the 82mm front filter thread, the lens features a rear filter holder. Rear filters, which are the size of an SD card, are easy to handle and less prone to damage and dirt. The included template allows users to cut custom filters from gel sheets, enhancing the lenss versatility for various shooting conditions.

High-Performance Optics

The Sigma 20mm F1.4 DG DN | Art lens delivers outstanding optical quality, with excellent detail rendering even wide open at F1.4. The advanced optical design consists of 17 elements in 15 groups, including three aspherical elements and two SLD elements. This configuration ensures razor-sharp results while eliminating chromatic aberration, flare, distortion, and vignetting.

Advanced optical coatings reduce flare and ghosting, producing high-contrast images with rich colours and deep blacks.

Ideal for Environmental Portraits

The F1.4 aperture creates a very shallow depth-of-field, making this lens ideal for environmental portraits where the subject is portrayed within their surroundings. The shallow depth-of-field helps the subject stand out against the background.

Close-Up Shooting

With a magnification ratio of 1:6.1, the 20mm can shoot relatively close-up for an ultra-wide-angle lens, with a minimum focusing distance of 23cm (subject to sensor), putting the subject about 12cm from the lenss end. This, combined with the shallow depth-of-field, makes for attractive close-up images.

Key Features:

• Full-Frame Coverage: Designed specifically for mirrorless cameras.
• Ultra-Wide F1.4 Aperture: Exceptional low-light performance and shallow depth-of-field.
• Advanced Optical Design: 17 elements in 15 groups, including SLD and aspherical elements.
• Professional Controls: AF/MF switch, AFL button, aperture ring with de-click and lock switches, Manual Focus Lock, and Lens Heater Retainer.
• Superior Build Quality: Durable TSC construction with internal focusing and a robust petal-type lens hood.
• Dual Filter Options: 82mm front filter thread and rear filter holder.
• Lightweight and Compact: Weighs just 635g, perfect for versatile shooting.

Experience the ultimate in speed, sharpness, and versatility with the Sigma 20mm F1.4 DG DN | Art lens. Whether you’re capturing the night sky, stunning landscapes, or intricate architectural details, this lens ensures outstanding performance and image quality every time.