Art
24mm F1.4 DG HSM
Available mounts
- L-Mount
- Sony E-mount
- Sigma SA-mount
- Canon EF mount
- Nikon F mount
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Camera Type
DSLR
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Corresponding Mount
L-Mount, Sony E-mount, SIGMA SA-mount, Canon EF mount, Nikon F mount
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Sensor Format
Full-frame [DG]
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Lens Construction
15 elements in 11 groups
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Angle of View
84.1°
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Number of Diaphragm Blades
9 (Rounded diaphragm)
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Minimum Aperture
F16
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Minimum Focusing Distance
25cm / 9.8 in.
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Maximum Magnification Ratio
1:5.3
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Filter Size
φ77mm
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Dimensions (Diameter × Length)
L-Mount：φ85.4mm × 114.2mm / φ3.3in. × 4.5in.
SIGMA SA-mount：φ85mm × 90.2mm / φ3.3in. × 3.6in.
Sony E-mount：φ85.4mm × 116.2mm / φ3.4in. × 6.1in.
*The length of a lens is measured from the filter surface to its mount.
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Weight
L-Mount：755g / 26.6oz.
SIGMA SA-mount：665g / 23.5oz.
Sony E-mount：740g / 26.1oz.
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Edition Number
A015
The three-digit code on the surface of the lens is to indicate the year the lens was first released.
(Since it is different from the year of manufacture, the release year and edition number may not match depending on the mount.) -
Supplied Accessories
・Case
・Petal type LENS HOOD LH830-03
・FRONT CAP LCF-77mm III
・REAR CAP LCR II -
Mount / Product Barcode
Nikon F mount：00-85126-40155-9
L-Mount：00-85126-40169-6
SIGMA SA-mount：00-85126-40156-6 (discontinued)
Canon EF mount：00-85126-40154-2 (discontinued)
Sony E-mount：00-85126-40165-8 (discontinued)
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Camera Compatibility
LINK
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* 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.
* L-Mount is a registered trademark of Leica Camera AG.
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Sigma expertise and leading-edge manufacturing technologies deliver breathtaking optical performance.
Minimizing the optical aberrations that tend to affect large-diameter lenses makes possible a new horizon of image quality.
This lens features minimized aberration achieved through the latest design technology and know-how that has been accumulated by Sigma in its lens development over many years and offers astonishing rendering performance, even at the edges, with ultra-high resolution. Whilst featuring higher resolution around the focus point, the lens offers a smooth and natural bokeh effect. Both high definition rendering without chromatic aberration and natural bokeh expression are possible, even at maximum aperture.
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Leveraging our optical expertise, we have minimized sagittal coma flare for optimal capture of starry nightscapes.
Sagittal coma flare is the aberration in which a point light source appears as a streak instead of a point, and it affects large-diameter lenses in particular. By positioning aspherical lens elements toward the rear of the 24mm F1.4 DG HSM | Art, we have adjusted the angle of incidence of light for optimal power distribution. Even at wide-open aperture, you will enjoy outstanding image quality. Since streaking of point light sources toward the edges of the image is minimized, this lens is a powerful ally in photographing celestial bodies, nighttime illumination, and more.
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Minimized chromatic aberrations—thanks to FLD and SLD glass lenses.
One of the requirements of high rendering performance is the correction of chromatic aberration. Particularly, for axial chromatic aberration, which is challenging to correct even during image processing, the lens development stage is vital in ensuring minimized distortion. The 24mm F1.4 DG HSM | Art incorporates
(*)FLD (“F” Low Dispersion) glass and SLD (Special Low Dispersion) glass elements to minimize chromatic aberration of magnification, which is mainly visible around the edge of the image. Moreover, the power distribution ensures the correction of axial chromatic aberration. The result is high image quality throughout the entire focusing range—sharp and high-contrast image rendering without color blur.(*)FLD ("F" Low Dispersion) glass
FLD glass is ultra-low-dispersion glass that offers performance of the highest level. Highly transparent, its refractive index and dispersion are extremely low as compared to conventional types of glass. It offers characteristics very similar to those of fluorite, which is valued for its anomalous dispersion. These characteristics minimize residual chromatic aberration (secondary spectrum), which cannot be corrected by ordinary optical glass, while helping to produce sharp, high-contrast images.
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High-contrast images with bright edges—even at wide-open aperture.
Improving efficiency at large apertures and minimizing vignetting, we have designed the lens to secure very good brightness. Even at open aperture, it ensures high-contrast images for indoor photography, astronomical photography, and when photographing blue sky.
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Flare and ghosting reduction
From an early stage in the lens design process, flare and ghosting have been measured to establish an optical design resistant to strong incident light sources such as backlighting. Sigma’s Super Multi-Layer Coating reduces flare and ghosting to help photographers produce sharp and high contrast images even in backlit conditions. The included lens hood can be attached to block out extraneous light, which can have a negative effect on rendering performance.
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Exclusive low-dispersion glass
The degree to which light is refracted by glass depends on the light’s wavelength. This fact causes different colors of light to focus at slightly different points. The result is chromatic aberration, the color fringing that is particularly noticeable in telephoto lenses. Most chromatic aberration can be removed by combining a high-refractivity convex lens element with a low-refractivity concave element. Yet residual chromatic aberration known as “secondary spectrum” may still remain. To minimize this secondary spectrum, which can be a serious issue with conventional lenses, Sigma lenses feature up to three types of exclusive low-dispersion glass offering superior performance: ELD (Extraordinary Low Dispersion), SLD (Special Low Dispersion) and FLD (“F” Low Dispersion). In particular, FLD glass offers ultra-low dispersion in combination with high transmittance and the anomalous dispersion characteristics of fluorite. Meticulous deployment of these types of exclusive low-dispersion glass and optimization of power distribution gives Sigma lenses superlative image rendition undiminished by residual chromatic aberration.
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Minimized distortion.
It is not possible to compensate for distortion that is often observed with wide-angle lenses just by changing the aperture value. Therefore, the lens development stage is vital in ensuring minimized distortion. The Sigma 24mm F1.4 DG HSM | Art features an adjusted incidence angle of the light source from the surface of the first lens and aspherical glass elements to optimize the power layout at respective positions. This has helped minimize distortion throughout the entire image.
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Rounded diaphragm
When photographing with point light sources such as electric lights or reflections on a body of water in the background, the rounded 9-blade diaphragm helps produce an attractive bokeh effect—even at large-aperture settings.
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The finest in materials, usability and functionality.
A refined, integrated design made with the photographer in mind.
All lenses in Sigma’s new Art line come with a hood with a high-quality rubberized connector and feature a newly designed lens cap and AF/MF switch, and are designed for intuitive use and superior functionality. Inside, HSM (hypersonic motor) delivers high AF speed and extremely quiet performance. An enhanced algorithm offers even smoother automatic focusing. Full-time manual focus override is another key feature that leaves the artistic touches in the photographer’s hands. The brass mount combines high precision with rugged construction. Its treated surfaces and enhanced strength contribute to the exceptional durability of the lens. In both the external and internal parts, the optimized use of TSC (Thermally Stable Composite), an excellent match for metal parts, further contributes to the high-precision construction of the lens. In addition, the last three digits of the year the lens was offered for sale are engraved on the barrel for ease of reference.
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HSM (Hyper Sonic Motor)
HSM (Hyper Sonic Motor) delivers high AF speed and extremely quiet performance. Sigma’s latest AF algorithm makes possible even smoother automatic focusing. After AF has done its job, fulltime MF (manual focus) allows you to make fine adjustments to focus simply by turning the focus ring. Using the Sigma USB DOCK (sold separately) allows you to access the MO (manual override) function, which allows you to manually focus at any time during AF by turning the focus ring.
* The operation of full-time MF may vary based on mount type.
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TSC (Thermally Stable Composite)
Conventionally it is considered essential to leverage the qualities of metal and polycarbonate in camera and lens layout design. A first for the industry, the barrel of the new series of Sigma lenses features a new
(*)TSC (Thermally Stable Composite) that offers minimal thermal shrinkage combined with exceptional hardness. It also offers 25% greater elasticity than polycarbonate. Since its thermal shrinkage is low, TSC matches well with metal parts, further contributing to the high-precision construction of the lens.(*)TSC (Thermally Stable Composite)
TSC (Thermally Stable Composite) is a type of polycarbonate with a thermal expansion rate similar to that of aluminum. It has high affinity to metal parts which contributes to high quality product manufacturing. -
High-precision, rugged brass bayonet mount
The brass mount combines high precision with rugged construction. Its treated surfaces and enhanced strength contribute to the exceptional durability of the lens.
Lens construction
FLD glass
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
Diffraction MTF
Geometrical MTF
Distortion
effective distortion
When you take a picture of a lattice pattern, it will appear as the blue dotted line shows. The red line illustrates how the lattice pattern will appear in the actual picture when any lens distortion is taken into account.
relative distortion
In this chart, the horizontal axis shows the ideal image height (the distance from the center to the edge of the image [mm]). The vertical axis shows the extent of distortion. The extent of distortion is represented by how much Y, which is the actual image height, grows (or shrinks) against Y0 which is the ideal image height.
When you take the picture of a square object, if the distortion amount shows a minus value, the image will be seen as expanded (Barrel distortion). If the distortion amount is a plus value, it will be seen as a recessed (Pincushion distortion). When the distortion value is close to 0, the appearance of distortion is very minimal.
Vignetting
The horizontal axis shows the image height (the distance from the center to the edge of the image [mm]).The vertical axis shows the amount of light in the image (based on the amount of light in the image center being 100%). If the peripheral amount of light is lower than the center, the four corners of image will be darker (vignetting).
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F1.4
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F2.8
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F5.6
F1.4 brightness at wide-open aperture.The large-diameter
wide-angle lens that revealsa new horizon of image quality.
An all-new Art line lens featuring F1.4 brightness.
Best-in-class optical performance ideal
for nightscapes and cityscapes.
Offering best-in-class optical performance, this lens is designed to minimize aberrations for images virtually free of streaking and warping.
Sigma has a proven reputation for wide-angle lens design and manufacturing. Drawing on this experience and design know-how, refined through development of the Sigma 35mm F1.4 DG HSM | Art and 50mm F1.4 DG HSM | Art in our Art line, we have successfully minimized sagittal coma flare, chromatic aberration, distortion, and vignetting to achieve exceptional levels of optical performance with almost no aberration or distortion. This lens provides the best possible performance when photographing a variety of subjects from cityscapes, mountain ranges, and the star-filled night sky to indoor photography with low illumination or scenes that require a smooth bokeh effect. Enjoy the astonishing optical performance of the new F1.4 series that has just joined Sigma’s iconic Art line.
Art line delivers high-level artistic expression.
Sigma is organizing all its interchangeable lenses into three product lines; Contemporary, Art, and Sports, where each line has a distinctive concept. Designed with a focus on sophisticated optical performance and abundant expressive power, our Art line delivers high-level artistic expression. With the astonishing rendering performance that meets the highest standard, along with landscapes, portraits, still-life, close-ups, and casual snaps, they are perfect for the kind of photography that unleashes the inner artist. Ideal for studio photography, they offer just as much expressive scope when capturing architecture and starry skies and many other scenes.