Lens review
2010-02-03
Tokina AT-X DX AF 16.5-135 mm f/3.5-5.6
5. Chromatic aberration
Chromatic aberration is a huge problem for wide angle Tokina lenses. The model, tested here, is not an exception to that rule and you can see it clearly on the graph below.
At the shortest focal length the chromatic aberration level exceeds momentarily 0.2% which is a huge value, easily spotted in pictures. On increasing the focal length to 35 mm this aberration decreases to the medium level and at 75 mm it becomes imperceptible. Unfortunately at 135 mm the aberration increases significantly again, reaching the value of 0.14%, considered to be the borderline between medium and high.
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