Amazon.com : Sigma 50mm F1.4 Art DG HSM Lens for Nikon : Electronics
Review: The Sigma Art 50mm f/1.4 for Nikon - Wake Forest / Raleigh NC Photographer Anthony S. Torres' Blog : Wake Forest / Raleigh NC Photographer Anthony S. Torres' Blog
The Sigma 50mm f/1.4 DG HSM Art lens for Nikon mount is finally shipping - Nikon Rumors