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Sigma 50mm F1.4 DG HSM Art Lens for DSLR Cameras, SIGMA SA-Mount, Ideal for the High-Megapixel Era
In stock
SKU
SIG311110
$949.00
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Key Features
- Large maximum aperture f/1.4: Enables low-light shooting and shallow depth of field.
- 13 elements, 8 groups optical design: SLD and aspherical elements reduce aberrations, improve sharpness.
- Rounded 9-blade diaphragm: Produces smooth, pleasing bokeh for portraiture.
- Minimum focus distance 40 cm: Allows moderate close-ups and flexible framing.
- 77 mm filter thread: Standard filter size for accessories and protection.
- HSM ultrasonic autofocus motor: Fast, quiet AF suitable for stills and casual video.
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Sigma 50mm F1.4 DG HSM Art Lens for DSLR Cameras, SIGMA SA-Mount, Ideal for the High-Megapixel Era Overview
Description
The Sigma 50mm F1.4 DG HSM Art (SA-mount) is a full-frame, standard prime optimized for ultimate resolution and smooth bokeh, offering a wide f/1.4 aperture, 13-element 8-group optics with SLD and aspherical elements, and a rounded 9-blade diaphragm for portraits, low-light work, and high-resolution imagery.
Built for DSLR professionals and collectors of Sigma SA-mount glass, this edition (A014, SKU SIG311110, UPC 00-85126-31156-8) pairs flagship Art-series optics with a durable, substantial mechanical design that resolves modern high-MP sensors and produces the creamy background separation demanded by portrait and cinematic shooters.
Benefits
- Optical excellence: High resolving power, suitable for high-MP full-frame sensors.
- Portrait-ready rendering: Large aperture and rounded blades create creamy backgrounds.
- Low-light capability: f/1.4 reduces need for high ISO in dim environments.
- Durability: Substantial build quality that feels professional in hand.
Applications
- Portrait photography, headshots, and environmental portraits
- Weddings and low-light event shooting
- Video and cinematic stills where shallow depth of field and pleasing bokeh are required
Why Choose
- Flagship Sigma Art performance in a 50mm prime, exceptional sharpness and bokeh for demanding photographers and collectors
Specifications
| Model Name / Number | 50mm F1.4 DG HSM Art (Edition A014) |
| Lens Type (Prime) | Standard prime lens |
| Intended Use | Photography, Video |
| Dimensions (Diameter Length) | f85.4 mm 99.9 mm |
| Weight | 815 g / 28.7 oz |
| Mount Type | SIGMA SA-mount (this SKU) |
| Compatible Sensor Size | Full-Frame (DG) |
| Supported Camera Brands / Systems | Sigma SA-mount DSLR bodies; adapter use is manual-only and limited |
| Focal Length | 50 mm |
| Maximum Aperture | f/1.4 |
| Minimum Aperture | f/16 |
| Aperture Type | Rounded, 9 blades |
| Optical Construction (Elements / Groups) | 13 elements in 8 groups |
| Special Elements | SLD and aspherical elements |
| Coatings | Multi-coating |
| Focus Type | Autofocus with manual override |
| Autofocus Motor Type | HSM ultrasonic motor |
| Minimum Focus Distance | 40 cm / 15.7 in |
| Maximum Magnification Ratio | 1:5.6 |
| Internal Focusing | Yes |
| Filter Thread Size (mm) | 77 mm |
| Compatible Lens Hood Model | LH830-02 |
| Angle of View (diagonal) | 46.8 |
| Number of Diaphragm Blades | 9 (rounded) |
| Brand | Sigma Corporation |
| Manufacturer SKU | SIG311110 |
| UPC | 00-85126-31156-8 |
What’s included
- 1- 50mm F1.4 DG HSM Art Lens, SIGMA SA-Mount
- 1- LH830-02 Lens Hood
- 1- LCF III 77mm Front Lens Cap
- 1- LCR II Rear Lens Cap
- 1- Lens Case
Compatibility
| Sigma SD1 Merrill | Sigma SD15 | Sigma SD14 | Sigma SD10 | Sigma SD9 |
FAQ
Is this Sigma 50mm F1.4 Art the SA-mount variant?
Yes, this listing is for the SIGMA SA-mount edition, SKU SIG311110, UPC 00-85126-31156-8, the A014 Art-series version.
Will autofocus work on modern mirrorless bodies?
Not natively. This SA-mount lens was designed for Sigma SA-mount DSLRs; adapter use on mirrorless systems is manual-only and typically does not preserve autofocus.
How is image quality wide open at f/1.4?
The optical design provides excellent center sharpness and very good edge performance, producing high resolution and attractive micro-contrast even at f/1.4.
What is the minimum focus distance and magnification?
Minimum focusing distance is 40 cm, with a maximum magnification ratio of approximately 1:5.6, suitable for moderate close-ups.
What accessories are included in the box?
Included are the LH830-02 lens hood, LCF-77mm III front cap, LCR II rear cap, and a case.
Does the lens have weather sealing?
The lens has a robust mechanical build typical of Art-series glass, but official weather sealing details for this SA-mount edition are not documented in the supplied material.
What filter size does it use?
The filter thread is 77 mm, a common size for professional filters and accessories.
Is this a good lens for portraits and weddings?
Yes, the large f/1.4 aperture and rounded 9-blade diaphragm deliver creamy bokeh and separation that are ideal for portraits and event photography.
Is the SA-mount version still supported by Sigma for service or firmware?
SA-mount is a discontinued mount from Sigma's current lineup; servicing and firmware updates are limited, so buyers should confirm service options locally.
How does this compare to other 50mm f/1.4 lenses?
It is positioned as a flagship Art-series prime with high resolving power and refined bokeh, making it competitive with premium 50mm primes, especially for users who can use SA-mount natively or who value optical performance over compactness.
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