Tokina AT-X PRO DX 11-20 mm f/2.8
11. Summary
- solid casing,
- unique parameters,
- sensational image quality in the frame centre no matter what focal length you employ,
- sensible image quality on the edge of the APS-C/DX,
- imperceptible longitudinal chromatic aberration,
- moderate coma,
- low astigmatism,
- slight vignetting for this class of equipment,
- good price quality and price possibilities ratio.
Cons:
- dismal AF/MF ring which performs poorly,
- problems with autofocus,
- higher distortion level than that of its rivals,
- performance against bright light could have been better,
- huge lateralc chromatic aberration.
The autofocus slip-up is painful, though. Perhaps the fact that in our test we used quite elderly bodies (the Nikon D7000 and the Canon 50D) contributed to that result; it is possible that the lens attached to a newer camera like the EOS 7D MkII or D7200 will perform better. Still we strongly recommend testing it personally on your own camera, preferably before the purchase.
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In the end we would like to issue an appeal. Tokina engineers: for your own good abandon the failure called One-touch Focus Clutch Mechanism and forget about it forever.