Sigma 50mm F1.4 DG DN Art Lens for Mirrorless Cameras, L-Mount, Low-Light & Portrait Photography

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SKU
SIG315969
$939.00
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Key Features
  • High-speed HLA Autofocus: Fast, quiet AF for stills and smooth video pulls.
  • Large f/1.4 Aperture: Exceptional low-light performance and subject separation.
  • 14-Element Optical Design: Sharp center-to-edge resolution, minimized aberrations.
  • 11-Blade Rounded Diaphragm: Creamy, natural bokeh for portraits and product shots.
  • Tactile Controls: De-clickable aperture ring with lock for filmmaking workflows.
  • Weather-Resistant Build: Dust and splash resistance for reliable outdoor use.

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Sigma 50mm F1.4 DG DN Art Lens for Mirrorless Cameras, L-Mount, Low-Light & Portrait Photography Overview

Description

The Sigma 50 mm F1.4 DG DN | Art (A023) delivers studio-grade sharpness and creamy bokeh in a compact, mirrorless-native design. Optimized for full-frame mirrorless systems, it balances edge-to-edge resolution with a fast, cinema-friendly HLA autofocus system.

Engineered for photographers and hybrid creators, this 50mm Art prime offers an 11-blade diaphragm, weather-resistant construction, and tactile controls including a de-clickable aperture ring and aperture lock for seamless stills and video workflows.

Problem — Common Challenges

Many 50mm primes struggle with focus speed, wide-open sharpness, or bulky DSLR-era designs. Photographers need a lens that is fast, compact, consistently sharp at f/1.4, and friendly for both photo and video.

  • Slow AF in low light causing missed shots.
  • Wide-open softness or pronounced aberrations.
  • Bulky weight and lack of tactile video controls.

Solution — What This Lens Solves

The Sigma 50 mm F1.4 DG DN | Art solves those problems by combining mirrorless-optimized optics, an HLA linear AF motor for speed and silence, an 11-blade diaphragm for pleasing bokeh, and a compact build that reduces weight without compromising durability or optical performance.

Benefits — What You Get

  • Reliable Low-Light AF: Capture decisive moments in dim venues with confidence.
  • Consistent Sharpness: Use wide open for portraits without sacrificing detail.
  • Creative Background Separation: Smooth bokeh for professional-looking subjects.
  • Hybrid-Ready Controls: De-click and lock aperture for seamless video exposure control.

Applications

  • Professional portrait and headshot photography
  • Wedding and event low-light shooting
  • Cinematic video and run-and-gun filmmaking

Why Choose This Lens

  • Art-series optical quality and cinema-friendly features at a value-driven price point.
Specifications
Model Name / Number50 mm F1.4 DG DN | Art (A023)
Lens TypePrime
Intended UsePhotography, Video
Color / FinishBlack
Weather SealingYes, dust and splash resistant
Dimensions (Diameter Length)78.2 mm 109.5 mm (L-Mount)
Weight670 g (L-Mount)
Mount TypeL-Mount, Sony E-mount
Compatible Sensor SizeFull-frame
Supported Camera Brands / SystemsL-Mount alliance bodies, Sony E-mount full-frame mirrorless
Coverage35mm full-frame
Focal Length50 mm
Maximum Aperturef/1.4
Minimum Aperturef/16
Aperture Type11-blade, rounded
Optical Construction14 elements in 11 groups
Special Elements3 aspherical elements, 1 SLD element
CoatingsWater and oil repellent coating on front element
Focus TypeAutofocus, Manual Focus
Autofocus Motor TypeHigh-response Linear Actuator (HLA)
Focus ModesAF-S, AF-C, MF
Minimum Focus Distance0.45 m / 45 cm
Maximum Magnification Ratio1:6.8
Internal FocusingYes
Filter Thread Size (mm)72 mm
Front Element RotationNo
Compatible Lens Hood ModelLH782-02
Focus Breathing ControlMinimized, suitable for video
Clickless Aperture OptionYes, de-clickable aperture ring
Firmware UpgradableYes, via Sigma USB Dock UD-11 (L-Mount)
BrandSigma Corporation
Manufacturer SKU315969
UPC00-85126-31569-6
What’s included
  • 1- 50mm F1.4 DG DN Art Lens, L-Mount
  • 1- Lens Hood - LH782-02
  • 1- Front Cap - LCF-72mm III
  • 1- Rear Cap - LCR II
  • 1- Lens Case
Compatibility
FREEFLY Ember S5K Sony BURANO Sony ILX-LR1 Sony NEX-VG30 Sony PXW-FS7M2
Kinefinity MAVO LF MKII Sony BURANO CineAlta Digital Cinema Camera Sony NEX-EA50M Sony NEX-VG900 Sony PXW-FX9
Kinefinity MAVO S35 MKII Sony FX3 Sony NEX-EA50UH Sony PXW-FS5 Sony VENICE 6K Digital Motion Picture Camera
Sony FX30 Sony FX6 Sony NEX-FS700R Sony NEX-FS700U Sony PXW-FS5M2
Sony PXW-FS7
FAQ

Is the Sigma 50 mm F1.4 DG DN compatible with Sony full-frame cameras?

Yes. The lens is available in Sony E-mount for full-frame mirrorless bodies and supports autofocus and camera features on compatible Sony cameras.

Does this lens have weather sealing?

Yes. The 50mm F1.4 DG DN | Art features dust and splash resistant construction and a water and oil repellent coating on the front element.

Can I use the aperture ring for video work?

Yes. The lens includes a de-clickable aperture ring and an aperture lock, making it suitable for smooth exposure changes during video recording.

What is the minimum focus distance and magnification?

The minimum focusing distance is 0.45 m (45 cm) with a maximum magnification ratio of 1:6.8.

Is firmware upgradable for this lens?

Yes. The L-mount version is compatible with the Sigma USB Dock UD-11 for firmware updates and focus adjustment.

How many aperture blades does the lens have?

The lens uses an 11-blade rounded diaphragm designed to produce smooth, natural bokeh.

What filter size do I need?

The filter thread size is 72 mm, compatible with commonly available 72mm filters.

How does this lens compare to older DSLR 50mm Art versions?

This DG DN design is optimized for mirrorless short flange distances, offering improved center-to-edge sharpness, smaller size, and advanced AF tailored to mirrorless bodies.

Is the autofocus suitable for video autofocus transitions?

Yes. The High-response Linear Actuator (HLA) motor provides fast, quiet autofocus suitable for smooth video transitions.

What accessories are included in the box?

The box includes a case, LH782-02 hood, front cap LCF-72mm III, and rear cap LCR II.

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