History

    The definitive large-diameter
    zoom lens for any shoot

    All-new 24-70mm F2.8

    The performance and functionality that pros
    in all fields require

    What photographers demand from the 24-70mm F2.8 specification is much more than outstanding image quality. They want all the features that make this a go-to lens for a wide range of photographic opportunities, including optical design ideal for the latest ultra-high-megapixel digital cameras, hypersonic motor (HSM) for high-speed autofocus, optical stabilizer (OS) with powerful stabilization effect, dust- and splash-proof mount with rubber sealing, and a metal barrel for a stable, rigid feel. This all-new 24-70mm F2.8 lens from SIGMA delivers the performance and functionality that help pros succeed in news, nature, and many other fields of photography.

    Art line delivers high-level artistic expression

    SIGMA is organizing all its interchangeable lenses into three product lines: Contemporary, Art, and Sports, each with a distinctive concept. Designed with a focus on sophisticated optical performance and abundant expressive power, our Art line lenses deliver high-level artistic expression. Offering astonishing rendering performance that meets the highest standard, they are perfect for landscapes, portraits, still-lifes, close-ups, and casual snaps. They are made for the kind of photography that unleashes the inner artist. A powerful ally in every genre of photography, SIGMA’s Art line lenses excel both in the studio for formal works and outdoors for impressive shots of architecture, starry skies, and many other scenes.

    Features

    The large-diameter standard zoom ideal for today’s
    ultra-high-megapixel digital cameras

    SIGMA’s Art line: a focus on high resolution

    • SLD glass
    • Aspherical lens

    To fulfill the uncompromising image quality standard of the Art line, this lens features a power distribution that has been optimized in exacting detail. This is the lens for those who desire consistent resolution at maximum F2.8 brightness or lower and complete control of the beautiful bokeh effect.

    Outstanding optical performance

    Three SLD glass lens elements and four aspherical lens elements help minimize optical aberrations. To ensure outstanding image quality from the center to the edges of the photograph, the optical system minimizes coma, which causes points of light to streak, and transverse chromatic aberration, which cannot be corrected by adjusting the aperture. The optical system also minimizes distortion, which can be particularly evident in wide-angle shots, resulting in excellent optical performance throughout the zoom range.

    Incorporating advanced aspherical lens processing technology

    Aspherical lenses necessitate refined expertise in the design and manufacturing of advanced, high-performance lenses. SIGMA’s representative products to feature this technology were the SIGMA 12-24mm F4 DG HSM | Art and SIGMA 14mm F1.8 DG HSM | Art, which both incorporated large ⌀80mm aspherical lenses as their front lens element.

    Building on the success of these predecessors, the SIGMA 24-70mm F2.8 DG OS HSM | Art incorporates an aspherical lens element that helps achieve extremely high resolution. This element is much thicker at the center than the edges, and forming its unusual shape is a feat of manufacturing technology. Moreover, SIGMA processes the surface of this aspherical lens element with ultra-precise tolerances that are measured in hundredths of a micrometer. This extremely fine surface allows the SIGMA 24-70mm F2.8 DG OS HSM | Art to deliver a very natural and smooth bokeh effect, without the visible concentric rings that afflict typical aspherical lens elements.

    A 24-70mm F2.8 lens that meets the high standards of the Art line

    SIGMA has continuously pioneered 24-70mm F2.8 lenses that are a step ahead of the times. The first model of this specification, SIGMA 24-70mm F2.8 EX DG ASPHERICAL DF, launched in 2001. Representing the fourth generation of the family, the new SIGMA 24-70mm F2.8 DG OS HSM | Art accomplishes a challenging feat in optical design: incorporating optical stabilizer functionality in a large-diameter standard zoom. By leveraging all of its design and manufacturing expertise, SIGMA has ensured that this new lens fulfills the uncompromising requirements of the Art line for image and build quality.

    Bokeh that is a cut above

    At wide-open aperture, this lens offers outstanding photographic expression. The area in focus is extremely sharp, while the background exhibits a beautiful bokeh effect with only slight spherical aberration. Since large-diameter zoom lenses are often used at wide-open aperture, SIGMA has paid close attention to the shape of the bokeh, aiming for perfect circularity.

    Distortion

    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.

    Designed to minimize flare and ghosting

    From the start of the design process, SIGMA measured flare and ghosting to establish an optical design that is resistant to strong incidental light sources such as backlight. At the prototyping stage, SIGMA used not only simulations but actual photographic experiments to assess flare and ghosting under multiple criteria, identify the causes of these issues under a wide range of situations, and take measures to mitigate them. In addition, SIGMA’s Super Multi-Layer Coating helps further reduce flare and ghosting and provide sharp, high-contrast images even in backlit conditions.

    Vignetting

    F2.8
    F5.6
    F11

    OS and other features for
    success on any shoot

    OS functionality, newly designed HSM,
    dust/splash-proof construction,
    electromagnetic aperture control (for Nikon),
    and more

    This lens has all the features and functions photographers need to be successful on a wide variety of shoots. In addition to outstanding image quality, this lens offers autofocus, construction that minimizes the incursion of dust and debris, an optical stabilizer (OS) function, and more. To make this lens as easy to use as possible by photographers in all fields, it features not only SIGMA’s most advanced mechanical systems but also the company’s latest software.

    Incorporating the OS function for success on any shoot

    Designed for use in a wide variety of situations, the optical stabilizer (OS) offers a powerful stabilization effect of 4 stops*.

    * Based on CIPA guidelines. Measured at the telephoto setting on a camera with a 35mm full-size image sensor.

    Lens barrel designed for high rigidity

    Since large-diameter standard zoom lenses tend to serve as a go-to lens and see frequent use, the SIGMA 24-70mm F2.8 DG OS HSM | Art is designed to stand up to the challenging shooting environments that pros encounter. To this end, the lens barrel contains a large amount of metal, while the external moving parts feature thermally stable composite (TSC), which is resistant to thermal expansion and contraction. This structure contributes not only to the outstanding optical performance of the lens but also to its high rigidity and confidence-inspiring build quality.

    Newly designed HSM for fast
    AF performance

    The newly designed hypersonic motor (HSM) offers 1.3 times the torque of its predecessor. Even at low speeds, it offers exceptionally stable performance.

    Nikon electromagnetic diaphragm mechanism included

    The Nikon mount version of this lens includes an electromagnetic diaphragm mechanism that allows it to receive the appropriate signals from the camera body. This feature ensures precision diaphragm control and stable Auto Exposure (AE) performance during continuous shooting.

    Fast AF with full-time manual focus

    Full-time manual focus function allows the lens to be switched to manual focus simply by rotating the focus ring.

    Note: The operation of full-time MF may vary based on mount type.

    Mount with dust- and splash-proof design

    Since the area of the lens most vulnerable to dust and other foreign bodies is the mount, rubber sealing* helps provide peace of mind. In addition, the front lens element features a water- and oil-repellant coating that helps the lens perform well in the rain, near water, and in other challenging conditions.

    * Except for SIGMA mount

    Rounded diaphragm

    The 9-blade rounded diaphragm creates an attractive blur in the out-of-focus areas of the image.

    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.

    ESSENTIALS

    You'll find our philosophy and craftsmanship
    in every product

    Our new lineup fully expresses our approach to lenses and photography itself. All of our lenses belong to one of three lines—Contemporary, Art, or Sports—all of which share our development philosophy and advanced manufacturing system. High performance, high quality, and high end in every respect, these lenses give people who love photography lasting value and consistent, exciting results. The secret is our passion for craftsmanship that we put into every production process and every product.

    Specifications

    24-70mm F2.8 DG OS HSM | Art

    Lens Construction

    • SLD glass
    • ASPHERICAL LENS

    Lens Construction

    19 elements in 14 groups

    Angle of View

    • 84.1°­ - 34.3°

    Number of Diaphragm Blades

    9 (Rounded diaphragm)

    Minimum Aperture

    F22

    Minimum Focusing Distance

    37cm / 15in.

    Maximum Magnification Shooting

    1:4.8

    Filter size

    φ82mm

    Dimensions (Diameter × Length)

    • φ88mm × 107.6mm / φ3.5in. × 4.2in.
    • *The length of a lens is measured from the filter surface to its mount.

    Weight

    • 1,020g / 36.0oz.

    Edition Number

    A017

    Supplied Accessories

    Case, Petal Type Lens Hood (LH876-04) Supplied.

    Corresponding AF Mounts / Barcode No.

    • SIGMA SA-Mount
      00-85126-57656-1
    • Nikon F Mount
      00-85126-57655-4
    • Canon EF Mount
      00-85126-57654-7

    Technologies

    Performance / Data

    MTF Chart

    Diffraction MTF

    Geometrical MTF

    The MTF chart gives the result at the wide-open aperture
    Spatial frequency S:Sagittal Line M:Meridional Line
    10lp/mm
    30lp/mm

    MTF chart guide

    Distortion

    Vignetting

    F2.8
    F5.6
    F11
    F2.8
    F5.6
    F11

    Vignetting guide

    Product Lineup

    24-70mm F2.8 DG OS HSM | Art

    • SIGMA SA-mount

      Supplied Accessories

      Case, Petal Type Lens Hood (LH876-04) Supplied.

      Barcode No.
      00-85126-57656-1
    • Nikon F mount

      Supplied Accessories

      Case, Petal Type Lens Hood (LH876-04) Supplied.

      Barcode No.
      00-85126-57655-4
    • Canon EF mount

      Supplied Accessories

      Case, Petal Type Lens Hood (LH876-04) Supplied.

      Barcode No.
      00-85126-57654-7

    Accessories

    Supplied Accessories

    LENS HOOD LH876-04

    Barcode No.
    00-85126-93346-3

    FRONT CAP LCF-82mm Ⅲ

    Barcode No.
    00-85126-93002-8

    REAR CAP LCR Ⅱ

    * The image is for SIGMA.

    • SIGMA SA-mount

      Barcode No.
      00-85126-92949-7
    • Nikon F mount

      Barcode No.
      00-85126-92950-3
    • Canon EF mount

      Barcode No.
      00-85126-92951-0

    Separately Sold Accessories

    WR CERAMIC PROTECTOR 82mm

    With many applications in aerospace and other industries, glass ceramic is an extremely tough type of crystallized glass that serves as the foundation for Clear Glass Ceramic. While featuring the high transmittance required of optical devices, this advanced new material combines greater hardness than chemically strengthened glass and greater flexibility than sapphire crystal glass. These qualities make Clear Glass Ceramic the ideal material for protective lens filters.

    * Thinner frame wide type.

    Barcode No.
    00-85126-93183-4

    PROTECTOR 82mm

    Normal type. Protector is developed to protect the lens surface from dirt and dust as well as scratches. It is an ideal filter for regular use as it is completely colorless so does not affect color reproduction.

    * Thinner frame wide type.

    Barcode No.
    00-85126-93110-0

    WR PROTECTOR 82mm

    Water-repellent, Antistatic type. Protector is developed to protect the lens surface from dirt and dust as well as scratches. It is an ideal filter for regular use as it is completely colorless so does not affect color reproduction.

    * Thinner frame wide type.

    Barcode No.
    00-85126-93097-4

    WR UV FILTER 82mm

    UV Water-repellent, Antistatic type. UV filter prevents the bluish tone that generates when the weather is fine, by absorbing ultraviolet rays. It is effective in most situations, such as landscape, portrait and general photography on a sunny day. It is also an ideal filter for regular use as it is completely colorless so does not affect color reproduction.

    * Thinner frame wide type.

    Barcode No.
    00-85126-93071-4

    WR CIRCULAR PL FILTER 82mm

    PL Water-repellent, Antistatic type. Circular PL filter removes the reflection of water surface and glass windows, and increases the contrast in landscape photography.

    * Thinner frame wide type.

    Barcode No.
    00-85126-93084-4

    USB DOCK UD-01

    By connecting a SIGMA Art, Contemporary, or Sports lens to a computer with the SIGMA USB DOCK, photographers can update the lens firmware and adjust focus position and other parameters.

    • SIGMA SA-mount

      Barcode No.
      00-85126-87856-6
    • Canon EF mount

      Barcode No.
      00-85126-87854-2
    • Nikon F mount

      Barcode No.
      00-85126-87855-9

    SIGMA MOUNT CONVERTER MC-11

    The SIGMA MOUNT CONVERTER MC-11 allows you to use your SIGMA SA mount and SIGMA EOS mount interchangeable lenses with the Sony E-mount camera body.

    • SIGMA SA-E
      SIGMA SA-mount

      Barcode No.
      00-85126-93251-0
    • CANON EF-E
      Canon EF mount

      Barcode No.
      00-85126-93250-3

    SIGMA MOUNT CONVERTER MC-21

    The SIGMA MOUNT CONVERTER MC-21 allows SIGMA SA mount and SIGMA’s CANON EF mount interchangeable lens owners to use their lens investment on L-Mount camera bodies.

    • SIGMA SA-L
      SIGMA SA-mount

      Barcode No.
      00-85126-93724-9
    • CANON EF-L
      Canon EF mount

      Barcode No.
      00-85126-93723-2

    Catalogs / Resources

    Manuals / Brochures

    Impressions / Samples