Tamron 20-40mm F/2.8 Di III VXD Review

The 20-40mm F/2.8 Di III VXD is a unique lens from Tamron that delivers something genuinely new and interesting for Sony Alpha owners. Can it really replace both a wide-angle and standard zoom in your camera bag? Find out now by reading our in-depth review of the exciting Tamron 20-40mm lens, complete with full-size sample photos.