• As part of the Contemporary line within Sigma’s Global Vision series, this lens is designed to achieve a balance between convenience and performance, and meshes a compact, lightweight build and versatile handling with notable optical attributes.
• Wide-angle to short-telephoto zoom is designed for DX-format Nikon F-mount cameras and provides a 25.5-105mm equivalent focal length range.
• Bright f/2.8-4 maximum aperture range is suitable for working in available light conditions and also benefits depth of field control for isolating subject matter.
• One Special Low Dispersion (SLD) and two F Low Dispersion (FLD) elements are featured in the optical design and help to reduce color fringing and chromatic aberrations for improved clarity and color accuracy.
• Three aspherical elements are used to help limit distortion and spherical aberrations and also contribute to greater overall sharpness and accurate rendering.
• A Super Multi-Layer Coating has been applied to lens elements in order to minimize lens flare and ghosting and contribute to producing contrast-rich and color-neutral imagery, even in backlit conditions.
• Ideal for close-up shooting, this lens offers a 1:2.8 maximum magnification along with a minimum focusing distance of 8.7″ to suit working with nearby subjects.
• Integrated HSM (Hyper Sonic Motor), along with a rear focus system, realizes quick and quiet autofocus, which is further complemented by an optimized AF algorithm to produce smoother focusing performance. The HSM also permits full-time manual focus control simply by rotating the focus ring at any time.
• Optical Stabilizer system minimizes the appearance of camera shake to benefit making sharper imagery when shooting handheld.
• Rounded seven-blade diaphragm contributes to a smooth and pleasing bokeh quality.
• Constructed using a Thermally Stable Composite (TSC) material for greater precision and use in wide temperature variations. Additionally, a brass bayonet affords improved mounting accuracy and rigidity.
• This lens is compatible with the optional Sigma USB Dock for fine-tuning different lens characteristics and updating its firmware.

• F-Mount Lens/DX Format
• 25.5-105mm (35mm Equivalent)
• Aperture Range: f/2.8 to f/22
• Two FLD Elements, One SLD Element

Technical Specification

General

In the Box

• Sigma 17-70mm f/2.8-4 DC Macro OS HSM Contemporary Lens for Nikon F
• Sigma LCF-72 III 72mm Lens Cap
• Sigma Rear Cap LCR II for Nikon F Mount Lenses
• Sigma Lens Hood for 17-70mm f/2.8-4 DC Macro Lens