Sigma 50mm f/1.2 DG DN Art Lens (Sony E)

Sigma 50mm f/1.2 DG DN Art Lens for Sony E
Ultra-Fast Standard Prime – Lightest-in-Class Build, Dual HLA AF Motors, 13-Blade Iris & De-Clickable Aperture Ring

The Sigma 50mm f/1.2 DG DN Art is an ultra-fast standard prime lens designed for full-frame Sony E-mount mirrorless cameras. Combining a classic focal length with an extremely bright f/1.2 maximum aperture, this flagship Art-series optic is engineered for portraiture, street scenes, commercial work, and low-light shooting. As the lightest lens in its class and the brightest 50mm prime in Sigma’s lineup, it achieves high-resolution rendering and rich, artistic background separation without adding unnecessary bulk to a camera rig.

Driven by Sigma’s dual High-Response Linear Actuator (HLA) system, the lens provides rapid, whisper-quiet, and precise autofocus tracking for stills and video workflows. Its optical construction uses high-refractive index glass, four aspherical elements, and a Super Multi-Layer Coating to suppress ghosting and flare while maintaining edge-to-edge contrast. A landmark feature for Sigma, a rounded 13-blade diaphragm maintains smooth, circular out-of-focus highlights even when stopped down. Constructed with a dust- and splash-resistant structure, a water- and oil-repellent front element coating, an assignable AFL button, and a lockable click/de-click aperture ring, the lens combines field durability with intuitive tactile handling.

Key Features & Performance Highlights

Lightest-in-Class Build: Engineered with a compact mechanical layout to minimize carry weight while offering a bright f/1.2 maximum aperture.

Sigma-First 13-Blade Rounded Iris: Delivers exceptionally smooth, circular bokeh and natural background separation across the aperture range.

Dual HLA Autofocus System: Dual High-Response Linear Actuators provide fast, silent, and highly responsive AF tracking for photo and cinema applications.

Advanced Optical Architecture: Features 4 aspherical elements, high-refractive index glass, and Super Multi-Layer Coating for low distortion and high contrast.

Tactile Controls & De-Clickable Iris: Includes an assignable AFL button, focus mode switch, and an aperture ring with click/de-click and lock switches.

Weather-Sealed Construction: Built with environmental sealing, a water- and oil-repellent front coating, and a petal-type lens hood with a locking mechanism.

Technical Specifications

Lens Type: Standard Prime Lens

Lens Mount System: Sony E Native (Full-Frame & APS-C Compatible)

Focal Length: 50 mm (35mm Full-Frame Equivalent on APS-C: 75 mm)

Maximum Aperture: f/1.2

Minimum Aperture: f/16

Optical Construction: 17 Elements in 12 Groups (4 Aspherical Elements)

Optical Coatings: Super Multi-Layer Coating, Front Water- and Oil-Repellent Coating

Autofocus Mechanism: Dual High-Response Linear Actuators (HLA)

Diaphragm Design: 13-Blade Rounded Iris

Barrel Controls: Assignable AFL Button, Focus Mode Switch, Aperture Ring (Click/De-Click/Lock Switches)

Lens Hood: Petal-Type Hood with Locking Mechanism

Environmental Protection: Dust- and Splash-Resistant Structure

Filter Thread Diameter: 72 mm

Dimensions (Diameter x Length): Approx. 3.2 x 4.3 inches / 81.0 x 108.8 mm

Weight: Approx. 1.6 lb / 745 g