Sigma 150mm F2.8 EX DG Macro HSM is an Auto Focus (AF)
Macro Prime lens with 35mm FF max sensor coverage and it is designed to be used with Four Thirds mount cameras.
Lens Mount
Sigma 150mm F2.8 EX DG Macro HSM is compatible with cameras that have Four Thirds lens mount.Some of the latest released cameras with Four Thirds lens mount are
Olympus E-5,
Olympus E-600 and
Olympus E-620.
Sensor Coverage
Max sensor coverage of Sigma 150mm F2.8 EX DG Macro HSM is 35mm FF.
Focal Range
Sigma 150mm F2.8 EX DG Macro HSM has a fixed focal lenght of 150mm. When mounted on a 35mm FF format camera, it provides an 35mm (FF) equivalent of 150mm.
Aperture
Sigma 150mm F2.8 EX DG Macro HSM has a max aperture of F2.9 - F2.8 and a minimum aperture of F22.0.