The Tamron A035TM Tripod Mount is an optional mount for the Tamron 100-400mm f/4.5-6.3 Di VC USD (Canon & Nikon mounts available) as well as the Tamron 50-400mm f/4.5-6.3 Di III VC VXD for Sony E. It features an integrated arca swiss-type dovetail into the foot, negating the need for an additional lens plate.