• As part of the Sports line within Sigma's Global Vision series, this lens is designed to offer excellent optical performance, speed, and other customizable features that make it an ideal choice for wildlife, sports, action, and other fast-moving subjects.
• Versatile telephoto zoom is designed for full-frame Sigma SA-mount cameras, however is also suitable for APS-C models where it provides a 105-300mm equivalent focal length range.
• Constant f/2.8 maximum aperture is well-suited for working in low-light conditions and also provides greater control over the focus position when using shallow depth of field techniques.
• One Special Low Dispersion (SLD) element and nine 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, as well as spherical aberrations for reduced distortion and improved sharpness throughout the zoom range.
• 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.
• Front and rear lens elements have been treated with a water- and oil-repellent coating to benefit working in harsh environmental conditions.
• Rounded 11-blade diaphragm contributes to a smooth and pleasing bokeh quality.
• The integrated HSM (Hyper Sonic Motor) realizes quick and quiet autofocusing, 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.
• An Intelligent Optical Stabilizer system minimizes the appearance of camera shake to benefit making sharper imagery when shooting handheld.
• The bayonet mount is constructed from brass for ensured accuracy and durability. Additionally, rubber sealing is incorporated in the mount design to render it dust- and splash-resistant.
• Tripod collar has a rotating design and the replaceable foot is Arca-type compatible for easy mounting.
• This lens is compatible with the optional Sigma USB Dock for fine-tuning different lens characteristics and updating its firmware.
• Compatible with optional Sigma 1.4x and 2x teleconverters.

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