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Lens review

Tamron SP 70-200 mm f/2.8 Di VC USD

8 July 2013
Szymon Starczewski

10. Autofocus

The Tamron SP 70–200 mm f/2.8 Di VC USD, as its name indicates, is equipped with an USD ultrasonic autofocus system. Because of that its cooperation with both Canon bodies, used in our test, was noiseless and fast. After attaching it to the EOS 1 Ds MkIII the autofocus worked very smoothly in good lighting conditions and it could cover the whole range in 0.5 of a second. In bad lighting conditions the situation was a bit worse – the focusing process got longer, amounting to 0.8-0.9 of a second; at the same time, the autofocus sometimes dithered and stopped for a tiny moment only to rush on after a while.

It’s worth mentioning that in this class of equipment neither the Tamron nor the Sigma come with an autofocus limiter.

When it comes to the accuracy - the biggest problem of the predecessor of the tested Tamron - the situation has improved a lot. In studio conditions the number of misses reached 8% which is a good result but not very good; anyway the brand-name products of Canon and Nikon were able to perform better.

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The tested lens didn’t have any problems with front or back focus on either of the bodies, used in the test.

Tamron SP 70-200 mm f/2.8 Di VC USD - Autofocus
Tamron SP 70-200 mm f/2.8 Di VC USD - Autofocus