Tamron recently announced the development of a new 50-400mm f/4.5-6.3 Di III VC VXD lens (model A067). Here is some additional information on the upcoming lens courtesy of B&H Photo: Key Features E-Mount Lens/Full-Frame Format 1:2 Magnification, 9.8″ Min. Focus Rapid Zoom Ring Zoom Lock Switch VXD eXtreme-Torque Drive Linear AF Motor Focus Limiter Function … Continue reading Tamron 50-400mm f/4.5-6.3 Di III VC VXD lens (model A067) additional information