Jul 28, 2022 Matt Growcoot Tamron Unveils 50-400mm f/4.5-6.3 Lens: ‘A New Category of Telephoto’ Tamron has announced a new 50-400mm f/4.5-6.3 Di III VC VXD for Sony E-mount full-frame mirrorless cameras which is expected to be available from this fall. Jul 28, 2022