All Sigma Global Vision lenses, including the new 85mm F1.4 DG HSM Art, 12-24mm F4 DG HSM Art, and 500mm F4 DG OS HSM Global Vision lenses, can be updated with the latest lens firmware from a workstation or laptop using the Sigma Optimization Pro software and Sigma USB Dock (sold separately).
Tested for Optimum Performance
Sigma lenses are born of well thought-out design concepts, exceptional Japanese craftsmanship and manufacturing, and advanced lens performance testing and evaluation. To this end, Sigma has developed its own A1 proprietary MTF (modulation transfer function) measuring system using 46-megapixel Foveon direct image sensors. Even the most elusive high-frequency details are within the scope of Sigma’s quality control inspections. Every Global Vision lens is A1 tested, analyzed and approved before leaving the factory, ensuring maximum performance out of the box.
For more information on Sigma’s industry leading testing, please visit http://blog.sigmaphoto.com/2012/a1-mtf-testing-for-new-sigma-lenses/.
About Sigma Corporation
Craftsmanship. Precision. Dedication. Since 1961, Sigma has been devoted the pursuit of advancing photographic technology. Unique to the industry, the family-owned business produces its high-quality, award-winning camera lenses, DSLR cameras, flashes, filters and accessories from its state-of-the-art manufacturing facility located in Aizu, Japan.
In 2012, the company introduced the Sigma Global Vision with three distinct lens lines: Art, Contemporary and Sport. Designed for industry camera mount systems including Canon, Nikon, Olympus, Pentax, Sony and Sigma, each lens is handcrafted and tested in Japan to ensure a high-performance, premium product that is purpose-built to last.
Sigma continues its tradition of imaging excellence with the mirrorless sd Quattro, sd Quattro H and the compact dp Quattro camera line. Leveraging the ultra-high resolution Foveon sensor, the Sigma Quattro cameras are designed to produce the highest quality image with every shot.
For information about Sigma, please visit www.sigmaphoto.com or follow the company on Twitter, Instagram and Facebook.