50mm F1.4
DG DN
- Superb optical performance across the frame
- High-response Linear Actuator (HLA) AF motor
- Slim and compact body
- Dust and splash-resistant structure
- Aperture ring with de-click function
- Focus mode switch and AFL button
- Water and oil repellent coating
- 11 rounded diaphragm blades
- Designed to minimize flare and ghosting
- Compatible with Lens Aberration Correction*
- Made in Japan
AWARDS
| Angle of view | Standard |
|---|---|
| Camera Type | Mirrorless |
| Lens Mount | L-Mount, Sony E-mount |
| Sensor Size | Full Frame |
| Construction | 14 elements in 11 groups (1 SLD and 3 aspherical lenses) |
| Angle of view | 46.8° |
| Number of diaphragm blades | 11 (rounded diaphragm) |
| Minimum aperture | F16 |
| Minimum focusing distance | 45cm |
| Maximum magnification ratio | 1:6.8 |
| Filter diameter | 72mm |
| Dimensions (diameter x length) | Sony E-mount φ78.2mm × 109.5mm |
| Weight (g) | Sony E-mount 670g |
| Edition number | A023 |
| Supplied Accessories | Lens hood LH782-02, Front Cap LCF-72 â…¢, Rear Cap LCR , Lens case |
| Accessories | USB Dock UD-11 (L-mount), SIGMA WR CERAMIC PROTECTOR 72mm, SIGMA WR PROTECTOR 72mm, SIGMA WR UV FILTER 72mm, SIGMA WR CIRCULAR PL FILTER 72mm |
| EAN-code | Sony E-mount 085126315658 |
| Specifications Info | * This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation. |
The "Art F1.4" standard with uncompromising optical performance
Based on the latest optical design technology, the lens incorporates 14 elements in 11 groups, with 3 aspherical lenses and 1 SLD glass element. The lens effectively suppresses various aberrations such as astigmatism and field curvature, which cannot be corrected in-camera. Despite the large aperture of F1.4, the image formation performance on the periphery of the image has been pursued and sagittal coma flare has been minimized to the extent that the lens can withstand even challenging star and night scenes, with demanding severe point light source imaging, from wide open. In addition to clear image quality with no color blur throughout the entire image circle, the large, natural bokeh beauty of F1.4 can be fully utilized in photography.
High-speed AF for nimble and comfortable shooting
The Sigma 50mm F1.4 DG DN | Art is the first in the Art line exclusively designed for full-frame mirrorless cameras to adopt the “HLA” linear motor (High-response Linear Actuator) . In addition, by using a single double-sided aspheric lens as the focus element, the lens offers fast and quiet focusing and high tracking performance despite its large aperture. With a maximum aperture of 1.4 and a high-performance AF system, the lens can be used in a variety of situations, including shooting in dark places, shooting moving subjects, snapshots, and even video.
High performance, yet slim and compact
The development of the Sigma 50mm F1.4 DG DN | Art was focused on slimming down the lens barrel by reducing the weight of a focus lens and optimizing the lens unit layout, to pursue the “optimum size” for mirrorless systems without compromising the “maximum emphasis on optical performance” concept of Sigma’s Art line. This lens has succeeded in achieving both top-class performance, and the size required for a light and mobile photographic tool.
Full range of functions and high build quality
The lens barrel is equipped with a Focus Mode switch, an Aperture ring click switch to turn the click on and off, an Aperture ring lock switch to prevent unintended operation, and an AFL button to assign any function from the camera. These features are designed for intuitive operation during shooting.
Dust and Splash Resistant Structure forsecurity in various shooting situations
The lens is equipped with a dust and splash resistant structure, and the front element of the lens is applied with a water and oil repellent coating, making it suitable for a wide range of shooting environments. The lens is compact, lightweight, and easy to use, while at the same time ensuring high build quality assured by the Aizu factory’s reliable processing technology of “Made in Japan”.
DG DN "Art F1.4" series lineup includes 5 lenses from 20mm to 85mm
20mm F1.4 DG DN | Art, 24mm F1.4 DG DN | Art, 35mm F1.4 DG DN | Art,
50mm F1.4 DG DN | Art NEW , 85mm F1.4 DG DN | Art
LENS CONSTRUCTION
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SLD GLASS
ASPHERICAL LENS
MTF CHART
The MTF (Modulation Transfer Function) is one of the measurements for evaluating a lens’ performance, and it shows how faithfully the contrast of the subject can be reproduced on the image plane. The horizontal axis shows the image height (distance from the center of the image in mm) and the vertical axis shows the contrast value (maximum value is 1).
The closer the 10 line pairs/mm curve is to 1, the higher the contrast and clarity of the lens is, and similarly, the closer the 30 line pairs/mm curve is to 1, the better the resolution and sharpness of the lens is.
*The MTF chart depicts the result at the wide-open aperture.
*For mirrorless lenses that support distortion correction, the horizontal axis shows the image height equivalent to when an L-Mount lens is attached to a Sigma L-Mount camera with distortion correction applied. (The effect of distortion correction may differ depending on the mount and camera used.)
*The spatial frequency indicates the variation on the image plane before distortion correction is performed.
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Spatial frequency |
S:Sagittal Line |
M: Meridional Line |
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10lp/mm |
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30lp/mm |
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DIFFRACTION MTF
DIFFRACTION MTF
GEOMETRICAL MTF
GEOMETRICAL MTF
Inner focus system
To increase stability, this lens configuration uses movable internal lens elements that adjust focus without changing the length of the lens barrel.
HLA (High-response Linear Actuator)
Matching the optical characteristics of the lens, this function performs in-camera corrections of peripheral illumination, chromatic aberrations, distortion, and more, to further enhance image quality.
*Function available on supported cameras only. Available corrections or auto correction functionality may vary depending on the camera model.
*On cameras where lens aberration correction is controlled with 'ON' or 'OFF' in the camera menu, please set all aberration correction functions to 'ON'(AUTO).
Super Multi-Layer Coating
SIGMA's own Super Multi-Layer Coating suppresses flare and ghosting by preventing reflections with in the lens. All lenses in the current SIGMA range feature this original technology. In digital cameras, flare and ghosting may also be caused by reflections between the image sensor and lens surfaces. Here too, SIGMA's Super Multi-Layer Coating is highly ef fective, assuring images of outstanding contrast.
Water and oil repellent coating
Incorporates a water and oil-repellent coating that allows water to be wiped away easily and prevents oil and fat from sticking to the surface, even in challenging shooting conditions. At the same time, the maintenance of the lens surface becomes easier.
AFL button
the AFL button can be assigned with various functions widens the range of operations available on the lens.
Focus Mode Switch
Using this swich, it is possible to switch the focus mode between AF and MF.
Aperture ring
Aperture ring, designed to help users work intuitively
Aperture ring click switch
Mounted with a de-click function for removing clicks by the aperture ring click switch, enabling seamless operations that are especially useful such as during video shooting.
Aperture ring lock switch
A ring lock system to prevent from unintended movement of the aperture ring during shooting.
Dust and Splash Resistant Structure
This lens features a highly effective dust and splash resistant structure with special sealing at the mount connection, manual focus ring, zoom ring, and cover connection.
*Although this construction allows the lens to be used in light rain, it is not the same as being waterproof, so please prevent large amounts of water from splashing on the lens. It is often impractical to repair the internal mechanism, lens elements and electric components if they are damaged by water.
Lens construction: 14 elements in 11 groups (1 SLD and 3 aspherical lenses)
Compatible with high-speed autofocus
Support for DMF, AF + MF
Compatible with AF assist (Sony E-mount only)
Support for switching between linear and non-linear focus ring settings (L-Mount only)
Petal type LENS HOOD LH782-02
Compatible with SIGMA USB DOCK UD-11 (sold separately; L-Mount only)
Designed to minimize flare and ghosting
Every single lens undergoes SIGMA’s proprietary MTF measuring system
11-blade rounded diaphragm
High-precision, durable brass bayonet mount
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Camera |
SONY α7R IV |
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Shutter Speed |
1/200s |
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Lens F Number |
F2.5 |
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ISO |
800 |
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Focal Length |
50mm |
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Photographer |
Meg Loeks |
