Tamron SP 24-70 mm f/2.8 VC USD G2 review - Autofocus

Have you rated your lenses yet?

Tamron SP 24-70 mm f/2.8 VC USD G2

18 December 2018

Arkadiusz Olech

10. Autofocus

Joined with the Canon 5D Mark III the autofocus of the tested Tamron is noiseless and quick. Running through the whole distance scale and setting the focus takes about 0.5 of a second. It seems that the lens is a tad quicker when going from the minimum distance to infinity than the other way round but the difference is not big, amounting to about 0.1 of a second. These results don’t change when you attach the lens to the older Canon 50D and are similar to the performance of the predecessor. They are also completely praiseworthy.

We don’t have any reasons to complain about the accuracy of the focusing mechanism. Outside, in good lighting conditions, we didn’t experience any problems. In the studio the number of misses didn’t exceed 2–3%.

When it comes to front or back focus tendency this time we have something different to say. The Tamron 24-70 mm G2 didn’t cooperate seamlessly with the EOS 50D because at 50 mm it had distinct back-focus which changed into front-focus after passing to 70 mm.

Please Support Us

If you enjoy our reviews and articles, and you want us to continue our work please, support our website by donating through PayPal. The funds are going to be used for paying our editorial team, renting servers, and equipping our testing studio; only that way we will be able to continue providing you interesting content for free.

- - - - - - - - - - - - - - - - - advertisement - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

The situation was a tad better with the lens attached to the 5D Mk III where, at 50 mm, we noticed a very slight front-focus which practically disappeared after passing to 70 mm. The effect was so imperceptible that both focal lengths could be improved by just one microcalibration adjustment on the camera menu level.

Canon 50D, 50 mm, f/2.8