T* antireflective coating from ZEISS. Outstanding stray light reduction is achieved by combining a number of optimally matched measures. In addition to the ZEISS T* coating, all lens edges are provided with a special pitch-black lacquer in a complex manual process.
Thanks to the low level of stray light allowed by the lens design, high-contrast images are also possible with increasing high dynamic ranges of the sensors (HDR). The minimization of coma, astigmatism and spherical aberrations enables constantly high resolution over the entire image field.