The
Sigma 150mm 2.8 APO Macro EX DG HSM is a consumer-level macro lens. It is constructed with a plastic body and a metal mount. This lens features a distance window with
magnification scale. A nine-blade, maximum
aperture of 2.8 gives this lens the ability to create very shallow depth of field effects. The optical construction of this lens is made up of 16 lens elements, including two SLD (Special Low
Dispersion) elements. This lens uses an inner
focusing system, powered by a ring type
HSM motor.
Auto focus speed of this lens is slow in absolute terms, being a macro lens it is not as fast as most ring HSM lenses. The front of the lens does not rotate nor extend when focusing. This lens is compatible with Sigma
teleconverter lenses. == Sample images ==