Sigma 70mm F2.8 DG Macro is an Auto Focus (AF)
Macro Prime lens with 35mm FF max sensor coverage and it is designed to be used with Canon EF mount cameras.
Lenses in Canon EF Mount with Same Focal and Aperture Range
Lens Mount
Sigma 70mm F2.8 DG Macro is compatible with cameras that have Canon EF lens mount.Some of the latest released cameras with Canon EF lens mount are
Canon 1D X III,
Canon 6D MII and
Canon 5D MIV.
Sensor Coverage
Max sensor coverage of Sigma 70mm F2.8 DG Macro is 35mm FF.
Focal Range
Sigma 70mm F2.8 DG Macro has a fixed focal lenght of 70mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides an 35mm (FF) equivalent of 112mm.
Aperture
Sigma 70mm F2.8 DG Macro has a max aperture of F2.8 and a minimum aperture of F22.
Optical Formula
Sigma 70mm F2.8 DG Macro's optical formula consists of 13 elements in 10 groups.