Tamron 17-28 mm F/2.8 Di III Rxd Lens for Sony E Cameras, A046SF Black,Tamron 17-28mm f/2.8 Di III RXD for Sony Mirrorless Full Frame/APS-C E Mount, Black (AFA046S700),Amazon.com : Tamron 17-28mm f/2.8 Di III RXD Lens for Sony E - Wide Angle, Moisture-Resistant, Auto Focus, E-Mount, 67mm Filter Size, Includes ,Review: Tamron 17-28mm f/2.8 Di III RXD - phillipreeve.net,Tamron 17-28 mm F/2.8 Di III Rxd Lens for Sony E Cameras, A046SF Black,