Auto Focus of HSM Lens for some Nikon Cameras does not work.

The AF control system for some Nikon Cameras does not work with HSM lenses. Sigma’s HSM lenses have full compatibility with F5, F4 series, F100, F90/N90, F90X/N90S, F80/N80 F70/N70, u/F65/N65,Pronea 600 and Pronea S. With other Nikon cameras, Sigma’s HSM version lenses can be only used in manual focusing mode.