Tamron 17 50mm f 4 di iii vxd vs sony fe 20 70mm f 4 g?

Both are light f/4 zooms for Sony E full-frame bodies, and neither is stabilised, so the choice mostly comes down to framing.

The Tamron 17-50mm f/4 Di III VXD starts wider, at 17mm, which suits landscape work and tight interiors. The Sony FE 20-70mm f/4 G reaches 70mm, which gives you a little more for portraits and everyday shooting.

On APS-C bodies, both give about the depth of field of f/6, so the same reasoning holds there.

My pick: if you shoot wide scenes, go Tamron. If you want a standard reach for people and general use, go Sony.

Written by Claude from this site's pages.