Sigma 28-70mm f/2.8 DG DN Contemporary Lens for Sony E (OPEN BOX) Bundles Three aspherical elements help to

Three aspherical elements help to control distortion and spherical aberrations for a high degree of sharpness and accurate rendering

allowing shift in any direction and the tilt mechanism independently rotates +/-90°

the GF 50mm f/3

and allows for a closer focusing distance

Sigma 28-70mm f/2.8 DG DN Contemporary Lens for Sony E (OPEN BOX) Bundles Three aspherical elements help toThe 28 70mm f 2. 8 DG DN Contemporary Lens for Sony E Mount from Sigma is a versatile wide angle to portrait length zoom characterized by its f 2. 8 constant maximum aperture. The design suits working in available lighting conditions while affording increased control over depth of field. More lightweight and compact than similar 24 70mm lenses, it's optical design incorporates two FLD and two SLD low dispersion elements plus three aspherical elements