History

    Large aperture standard zoom lens
    with a minimum focal length of 17mm, designed exclusively for digital SLR cameras
    and incorporating Sigma's original
    OS (Optical Stabilizer).

    Large aperture standard zoom lens with a minimum focal length of 17mm, designed exclusively for digital SLR cameras and incorporating Sigma’s original OS (Optical Stabilizer). The OS function offers superior Stabilization. The lens has a compact construction with an overall length of 91.8mm. This compact and lightweight construction makes the lens ideal for travel photography. Two FLD (“F” Low Dispersion) glass elements, two glass mold and one hybrid aspherical lens provide excellent correction for all types of aberrations. This lens has superior peripheral brightness and provides sharp and high contrast images even at the maximum apertures. The incorporation of HSM (Hyper Sonic Motor) provides fast and quiet AF.

    * Sony A-mount is not incorporated with OS function.

    Features

    FLD ("F" Low Dispersion) glass elements

    Two FLD (“F” Low Dispersion) glass elements, which have the performance equal to fluorite glass, compensate for color aberration. In addition, two glass mold elements and one hybrid aspherical lens give excellent correction for field curvature and astigmatism. High definition images are ensured throughout the entire zoom range.

    Super Multi-Layer Coating

    The Super Multi-Layer Coating reduces flare and ghosting as well as providing sharp and high contrast images throughout the entire zoom range.

    Sigma's own unique OS (Optical Stabilizer) technology

    The lens is equipped with Sigma’s own unique OS (Optical Stabilizer) function. The OS function offers superior stabilization.

    With Optical Stabilizer

    No Optical Stabilizer

    Superior peripheral brightness

    This lens has superior peripheral brightness and provides sharp and high contrast images even at the maximum apertures.

    Fast and quiet AF

    The lens incorporates HSM (Hyper Sonic motor), ensuring fast and quiet AF.

    F2.8 Large aperture throughout the entire zoom range

    The large aperture provides a bright viewfinder image, helping the photographer confirm accurate focusing. It is also ideal for emphasizing the subject by creating a natural, blurred background and allowing the use of fast shutter speeds.

    Minimum focusing distance of 28cm, Maximum magnification ratio 1:5

    Offering minimum forcusing distance of 28cm throughout the zoom range and maximum magnification of 1:5. Allows close up photography.

    Covering a wide range of focal lengths from 17mm

    This lens covers a wide range of focal lengths from 17mm and has an equivalent angle of view of a 25.5-75mm with a 35mm SLR camera. It is ideal for portraits, landscapes and general photography.

    * The angle of view varies depending on which camera the lens is mounted on.

    Rounded diaphragm

    This lens has rounded 7 blade diaphragm which creates an attractive bokeh to the out of focus area of the image.

    Compact construction

    The lens has a compact construction with a diameter of 83.5mm, overall length of 91.8mm and weight of 565g. This compact and lightweight construction makes it ideal for travel photography.

    Inner focusing system

    The inner focusing system eliminates front lens ration, making the lens particularly suitable for using the supplied petal-type hood and circular polarizing filters.

    Specifications

    17-50mm F2.8 EX DC OS HSM

    Lens Construction

    • FLD glass
    • ASPHERICAL LENS

    Lens Construction

    17 elements in 13 groups

    Angle of View

    • 79.7 - 31.7°

    Number of Diaphragm Blades

    7 Blades (Rounded diaphragm)

    Minimum Aperture

    F22

    Minimum Focusing Distance

    28cm / 11in.

    Maximum Magnification Shooting

    1:5

    Filter size

    φ77mm

    Dimensions (Diameter × Length)

    • ⌀83.5mm × 91.8mm / ⌀3.3in. × 3.6in.
    • *The length of a lens is measured from the filter surface to its mount.

    Weight

    • 565g / 19.9oz.

    Supplied Accessories

    CASE and PENTAL TYPE LENS HOOD (LH825-03) Supplied.

    Corresponding AF Mounts / Barcode No.

    • Nikon F Mount
      00-85126-58355-2
    • Canon EF Mount
      00-85126-58354-5
    • Sony A-Mount
      00-85126-92863-6

    Performance / Data

    MTF Chart

    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

    17-50mm F2.8 EX DC OS HSM

    • Nikon F mount

      Supplied Accessories

      CASE and PENTAL TYPE LENS HOOD (LH825-03) Supplied.

      Barcode No.
      00-85126-58355-2
    • Canon EF mount

      Supplied Accessories

      CASE and PENTAL TYPE LENS HOOD (LH825-03) Supplied.

      Barcode No.
      00-85126-58354-5
    • Sony A-mount

      Supplied Accessories

      CASE and PENTAL TYPE LENS HOOD (LH825-03) Supplied.

      Barcode No.
      00-85126-92863-6

    Support

    17-50mm F2.8 EX DC OS HSM

    Accessories

    Supplied Accessories

    LENS HOOD LH825-03

    Barcode No.
    00-85126-91680-0

    FRONT CAP LCF-77mmⅢ

    Barcode No.
    00-85126-93001-1

    REAR CAP LCR Ⅱ

    * The image is for SIGMA.

    • Nikon F mount

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

      Barcode No.
      00-85126-92951-0
    • Sony A-mount

      Barcode No.
      00-85126-92952-7

    Separately Sold Accessories

    WR PROTECTOR 77mm

    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.
    00-85126-93096-7

    PROTECTOR 77mm

    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.
    00-85126-93109-4

    WR UV FILTER 77mm

    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.
    00-85126-93070-7

    WR CIRCULAR PL FILTER 77mm

    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.
    00-85126-93083-7