Highlights
e-mount lens/full-frame format
aperture range: f
rounded 11-blade diaphragm
features
positioned as a workhorse lens among sony e-mount full-frame mirrorless systems, the sigma 24-70mm f/2.8 dg dn art is a versatile wide-angle to portrait-length zoom characterized by its f/2.8 constant maximum aperture. the bright design suits working in available lighting conditions and also affords increased control over depth of field. the optical design incorporates a series of low dispersion and aspherical elements that greatly reduce a variety of aberrations in order to achieve high sharpness, enhanced clarity, and improved color accuracy. both super multi-layer and nano porous coatings have also been applied to improve contrast and color rendering by suppressing lens flare and ghosting when working in strong lighting conditions.