Sigma 17-70mm f2.8-4 DC Macro OS HSM C (New 2013 Model)
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Best-in-class image quality and compactness let you shoot in the widest possible range of situations.
It's the high-level lens you trust for both everyday use and exceptional circumstances.
With its wide zoom range, the lens has a focal range equivalent to 25.5-105mm on a 35mm lens. Thanks to Sigma's latest technologies, it's exceptionally lightweight and 30% more compact by volume than previous lenses of its type. Its low F-number equips photographers to shoot subjects at extremely close range, making this the perfect lens for travel, family photos, artistic compositions, and many other uses. A complement to uncompromising optical performance, functionality, quality, and elegance, the compact size of the lens makes it ideal for everyday use. It is highly beneficial to photographers that the lens they use the most is one of the best in quality they have.
The full realization of the Contemporary product concept, combines lightweight, compact construction with best-in-class image quality and performance.
Sigma is organizing all its interchangeable lenses into three product lines; Contemporary, Art and Sports. Featuring the very latest technology, and combining optical performance with compactness, the Contemporary line covers a wide range of needs. Incorporating the very latest technology in these lenses, Sigma has solved the difficult problem of keeping size and weight low without compromising optical performance.
True macro photography - anytime, anywhere
Being able to shoot close to the subject is a crucial element in photography. This lens features a minimum focusing distance of 22cm and a maximum magnification ratio of 1:2.8, producing results that rival those of macro lenses. At 70mm, its working distance is 5.52cm. When used as a telephoto lens, it's so close to a dedicated macro lens in performance the lens hood seems to touch the subject. Since its range extends from the 35mm equivalent of 25.5mm to 105mm, the lens is perfect for shooting close-ups of fashion accessories, cuisine, flower arrangements and much more. Uncompromising in every aspect of lens design, Sigma has even chosen not to place the product name on the front of the lens to prevent reflection of the letters during close-up photography.
30% more compact
To create a high-performance, compact lens that's ideal for use in the widest possible range of situations, Sigma slenderized the lens barrel by reducing the size of the image stabilization OS unit and optimizing the lens power distribution and structural layout. The barrel features TSC (Thermally Stable Composite), which offers a high degree of compatibility with metal parts. Since its thermal shrinkage is low, TSC matches well with metal parts, further contributing to the high-precision construction of the lens. TSC also makes possible slimmer forms for parts like the zoom ring and scaling ring. These advances make possible a combination of best-in-class optical performance and a size 30% more compact by volume than previous lenses of its type.
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) offers thermal expansion characteristics similar to those of aluminum. Parts made with TSC deform less, making possible lens construction of extremely high precision. As compared to polycarbonate containing 20% glass, a commonly used material, TSC offers approximately 70% higher elasticity. As compared to polycarbonate containing 30% glass, it offers 25% higher elasticity. (Comparison is between Sigma-produced components.)
Superior image quality throughout the entire zoom range
To offer top image quality throughout the zoom range, the lens features 2 FLD (“F” Low Dispersion) glass elements, which have performance equal to fluorite, as well as a SLD (Special Low Dispersion) glass, which helps minimize chromatic aberration. The result is superior image quality from infinity to macro distances. Double aspheric lenses produced by precision glass molding and a newly designed cam with a highly complex structure help minimize astigmatism and other forms of aberration and realize top image quality. The bright finder lets photographers compose their images easily. In combination, these features make possible an attractive background bokeh effect at a high shutter speed while minimizing blurring of the subject.
A lens customizable to your needs
New exclusive software and USB DOCK make customization simple
For our new product lines, we have developed exclusive SIGMA Optimization Pro software that allows the user to update the lens firmware and adjust focus position and other parameters. The user will be able to connect the lens to a computer with a special USB DOCK and use easy-to-operate on-screen controls to create personal lens specifications. For Sports lenses, the focus limiter will also be customizable. (This is an additional accessory, available for purchase May/June).
||16 elements in 14 groups
|Angle of view (SD1)
||79.7° - 22.9°
|Minimum focusing distance
|Dimensions (Diameter x Length)
||φ79mm x 82mm / 3.1in x 3.2in
||7 (Rounded diaphragm)
|Maximum magnification ratio
||1 : 2.8
||465g / 16.4oz
Appearance and specifications are subject to change without notice.
Corresponding AF Mounts
SIGMA / SONY(D)*1 / NIKON(D) / PENTAX*1 / CANON
*1 If the camera body does not support HSM, auto focus will not be available.
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 and Pentax mounts are not incorporated with OS function.
The appearance and specification are subject to change without notice.