Tamron 35-150mm F/2-2.8 Di III VXD

Reviewers find it sharp in the centre across the range from wide open, with the corners slightly weaker at the long end and at f/2. Background blur is smooth for a zoom, and at 150mm f/2.8 subject separation is close to what a fast short-tele prime gives. Lateral colour and vignetting are visible uncorrected but respond well to profiles.

AF is fast and accurate with eye detection on Sony bodies and keeps up with events and candid work. The criticisms are weight, front-heaviness on smaller bodies, the lack of stabilisation, and a zoom ring that turns the opposite way to Sony's own lenses.

Wedding and event shooters say it lets them work with one body and one lens for most of the day, and many sold a 24-70 and 85mm prime after buying it. The extra stop at 35mm helps in dim venues.

Common complaints are the 1.2kg weight in long sessions, the 82mm filter size, and the 35mm wide end being too tight for some group and venue shots. A few owners mention firmware updates improving AF behaviour after launch.