The SP 24-70mm F/2.8 Di VC USD G2 (Model A032) lens comprises 17 glass elements in 12 groups, including: 2 XR (Extra Refractive Index) glass elements to counteract optical aberrations; 3 LD (Low Dispersion) elements to minimize axial chromatic aberrations that can occur with telephoto, as well as transverse chromatic aberrations that can be an issue with wide-angle; 3 GM (glass-molded aspherical) elements; and 1 hybrid aspherical lens element that effectively neutralizes spherical aberrations and distortions to create superior image quality. Thanks to a combination of these special glass materials, the A032 achieves previously unseen levels of accurate color reproduction and depictive performance.
Tamron has been one of the leading Japanese manufacturers of high-quality optics for many industries for 70 years.