Sigma 24-70mm F2.8 EX DG HSM is an Auto Focus (AF)
Standard Zoom lens with 35mm FF max sensor coverage and it is designed to be used with Sony Alpha mount cameras.
Lens Mount
Sigma 24-70mm F2.8 EX DG HSM is compatible with cameras that have Sony Alpha lens mount.Some of the latest released cameras with Sony Alpha lens mount are
Sony A99 II,
Sony A68 and
Sony A77 II.
Sensor Coverage
Max sensor coverage of Sigma 24-70mm F2.8 EX DG HSM is 35mm FF.
Focal Range
Sigma 24-70mm F2.8 EX DG HSM has a focal range of 24-70mm and 2.9X zoom ratio.
Zoom Method
Rotary (extending)
Aperture
Sigma 24-70mm F2.8 EX DG HSM has a constant max aperture of f2.8 from 24mm all the way to the 70mm .