The Sigma 3.5cm 1.4 DG HSM is a state of the art lens designed for full frame cameras but can also be used with APS-C sensors as well. The first addition to the Art category in Sigma's Global Vision, the 3.5cm 1.4 DG HSM
Includes:: new features based around a unique lens concept & design. The 3.5cm is a staple focal length in the world of photography, & paired with Sigma technology, this lens can take artistic expression to the next level. The lens is equipped with technology including a Hyper Sonic Motor (HSM), floating internal focusing system, SLD & FLD Glass elements. The HSM ensures quiet, high seed, accurate autofocusing while the floating focusing system allows for superior optical performance with subjects at a closer shooting distance. The SLD glass elements along with the FLD glass elements, which are equal to fluorite, help correct both axial & chromatic aberration. The large 1.4 aperture make it ideal in low light & the lens is compatible with the Sigma USB (Universal Serial Bus) dock & Optimization Pro software to adjust & fine tune focusing parameters.