 
     
      DISCONTINUED
              CONTEMPORARY
            17-70mm F2.8-4 DC MACRO OS HSM
          
        Available mounts
- SIGMA SA-mount
- Canon EF mount
- Nikon F mount
- Pentax mount
- Sony A-mount
- 
    Camera Type DSLR
- 
    Corresponding Mount SIGMA SA-mount,Canon EF mount,Nikon F mount,Pentax mount,Sony A-mount
- 
    Sensor Format APS-C [DC]
- 
    Lens Construction 16 elements in 14 groups 
- 
    Angle of View 79.7° - 22.9° 
- 
    Number of Diaphragm Blades 7 (Rounded diaphragm) 
- 
    Minimum Aperture F22 
- 
    Minimum Focusing Distance 22cm / 8.7in. 
- 
    Maximum Magnification Ratio 1:2.8 
- 
    Filter Size φ72mm 
- 
    Dimensions (Diameter × Length) φ79mm × 82mm / φ3.1in. × 3.2in. 
 *The length of a lens is measured from the filter surface to its mount.
- 
    Weight 465g 
- 
    Edition Number C013 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 LENS HOOD LH780-03 
 FRONT CAP LCF-72mm III
- 
    Mount / Product Barcode SIGMA SA-mount:00-85126-88456-7(DISCONTINUED)
 Canon EF mount:00-85126-88454-3(DISCONTINUED)
 Nikon F mount:00-85126-88455-0(DISCONTINUED)
 Pentax mount:00-85126-88461-1(DISCONTINUED)
 Sony A-mount:00-85126-88462-8(DISCONTINUED)
- 
    All figures calculated by SIGMA SA-mount. 
 * Vignetting will occur if the lens is used with image sensor larger than APS-C size or 35mm SLR, and APS Film SLR cameras. To find the 35 mm camera equivalent focal length, multiply the DC lens focal length by the “crop factor” (digital multiplier) of 1.5, 1.6 or 1.7, depending on the brand of DSLR camera on which the lens will be used. To find which DC lens is equivalent to a full frame lens, divide the focal length of the full frame lens by the same crop factor.
 * Sony A and Pentax mounts are not incorporated with OS function.
 * AF will not function with Pentax ist* series and K100D DSLR cameras that do not support HSM.
- 
    Lens construction   FLD glass SLD glass Aspherical lens 
- 
    MTF CHART DIFFRACTION MTF   DIFFRACTION MTF   - 
        Spatial frequency S:Sagittal Line M:Meridional Line 
- 
        10lp/mm 
- 
        30lp/mm 
 
- 
        
- 
    DISTORTION         
- 
    VIGNETTING     - 
        F2.8(17mm) - F4.0(70mm) 
- 
        F5.6(17mm) - F8.0(70mm) 
- 
        F11(17mm) - F16(70mm) 
 
- 
        
- 
    Lens construction: 16 elements in 14 groups, with 2 FLD glass and 1 SLD glass and 3 aspherical lenses
- 
    Compatible with Sigma USB DOCK UD-01 (sold separately)
- 
    Designed to minimize flare and ghosting
- 
    7-blade rounded diaphragm
- 
    High-precision, durable brass bayonet mount