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Designed for use with full frame digital SLR cameras.
HSM (Hyper-Sonic Motor) ensures a quiet & high-speed auto focus
Three Aspherical glass elements offer correction for distortion & to maintain its compact design. SLD (Special Low Dispersion) & ELD (Extra Low Dispersion) glass elements provide optimum color correction & sharpness throughout the entire zoom range
9 blade diaphragm creates a pleasant out-of-focus effect on backgrounds
Extremely compact design weighing only 28 ounces & measures only 4 inches in length.
A lens hood, front & rear lens caps and carrying case are included if shown in the description with the lens..
The Sigma Advantage
Technology and Innovation
Sigma was founded, nearly 50 years ago, on the creative thinking and the pursuit of innovation, design and development of a rear lens converter, which, at the time was thought not possible. That perseverance, commitment to new photographic developments and high standards of quality is what drives Sigma, still, today. The chairman and founder, who remains at Sigma's helm even today, continues to drive Sigma toward designing and discovering new optical technology that meets the needs of today's ever changing photo world and the demands of the photographers themselves.
Sigma Lens Quality
Sigma lenses provide the highest optical quality coupled with the newest technological innovations. Quality is never compromised and always the focus. Every phase of research, design, processing and production is done, on site, in the Sigma Tokyo factories. This allows the highest degree of quality control ensures a high, consistent level of quality as we process all of our own high-performance Special Low Dispersion glass (SLD), metal and resins, surface treatments and other elements.
Selection and Affordability
As the largest independent lens manufacture, Sigma offers over 50 lenses. You'd be hard pressed not to find multiple lenses to suit your needs, skill level, type of photography and most importantly, your vision. And don't forget, Sigma lenses are considerably more affordable than other manufacturers, which sweetens the deal!