A zoom lens upgrade for full-frame DSLR sensors

Taking the middle ground between budget and most own-brand lenses, the Tokina 12-24mm looks good value for the money. The 'one-touch' focus clutch system enables AF or manual focus to be selected by nudging the focus ring forwards or backwards

Apart from an extra 10mm in focal length, the Tokina macro lens bears more than a passing resemblance to the 90mm Tamron. Similarities include noisy and slow Autofocus, a non-rotating front element and the same push-pull mechanism on the focus ring