Tamron SP 24-70mm f/2.8 Di VC USD £800/$1300 What’s good: Effective stabilization, weather seals, good performance. What’s bad: Sharpness could be better towards the corners. Our verdict: It’s a smart FX-format buy, and fabulous value for money.
Sigma 17-70mm f/2.8-4 DC Macro OS HS M | C £350/$500 What’s good: Generous zoom, fast aperture, compact and lightweight. What’s bad: Not constant aperture, lacks ring-type ultrasonic autofocus. Our verdict: Highly effective and feels well balanced on smaller bodies.