Amazon.com : Sigma Contemporary Lens Bundle Includes Sigma 16mm f/1.4DC DN - 30mm f/1.4 DC DN - Sigma 56mm f/1.4 DC DN for Sony E-Mount Cameras, Black : Electronics
Hands-on with the Sigma 16-28mm F2.8 DG DN Contemporary: Digital Photography Review
Amazon.com : Sigma 16mm f/1.4 DC DN Contemporary Lens for Sony E (402965) : Electronics