PopPhoto has reviewed the Tokina 50-135mm f/2.8 Pro DX AF lens and they write’ “Our SQF tests found sharpness and contrast in the Excellent range at all focal lengths — an above-average performance, as many lenses in the category slip into the Very Good range at their long tele settings. DxO Analyzer 2.0 tests found Slight barrel distortion at 50mm (0.18%); Imperceptible pincushion distortion at 85mm (0.09%); and Slight pincushion distortion at 135mm (0.22%) — all excellent results. We found no light falloff at 50mm, and slight falloff at 85mm and 135mm, gone in both cases by f/3.5 — also exemplary. At the constant close-focus distance of about 39 inches, maximum magnification ratios ranged from 1:14.25 at 50mm to a respectable (but not great)1:5.42 at 135mm.”
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