Ultra-compact Tamron wide zoom with constant f/2.8 for Sony FE, 20-40mm with fast VXD AF and close focus.
The Tamron 20-40mm f/2.8 Di III VXD is a compact constant-aperture wide-to-standard zoom for the Sony FE (full-frame E-mount) system. Di III = full-frame mirrorless design. VXD = Voice-coil eXtreme-torque Drive AF motor. Tamron's compact fast zoom. Sony FE mount.
f/2.8 constant aperture. 20-40mm zoom (full-frame). VXD (Voice-coil eXtreme-torque Drive) AF motor. Compact and lightweight design. At approximately 365g. Sony FE mount.
The Tamron 20-40mm f/2.8 is designed as a compact and lightweight complement to Tamron's 35-150mm or 17-28mm zooms — covering a wide-to-normal range at constant f/2.8 in a notably small package. VXD AF motor provides fast and precise autofocus.
On the used market the Tamron 20-40mm f/2.8 Di III VXD is a compact full-frame Sony FE zoom. Condition checks: VXD AF speed and accuracy, front element, zoom ring. Sony FE mount — full-frame Sony Alpha mirrorless.