This Tamron lens is designed for Sony’s range of Alpha 35mm full-frame mirrorless cameras.

You can also use can use it on a smaller APS-C body like the Sony A6000 series of cameras, where the equivalent focal length will change to 30-60mm.

The Tamron 20-40mm for Sony features 11 elements in 12 groups including four LD (Low Dispersion), two GM (Glass Molded Aspherical) and one hybrid aspherical lens elements.

It has a rounded 9 blade diaphragm which creates an attractive blur to the out-of-focus areas of the image.

The Tamron 20-40mm incorporates a VXD (Voice-coil eXtreme-torque Drive) linear autofocus motor that delivers fast and quiet auto-focusing.

It offers an impressively close 0.17m minimum focusing distance and a maximum magnification of 1:3.8.

This lens has a moisture-resistant construction and a fluorine coating to protect against dust, dirt, and smearing.