IN THE LAB: SQF data were about average for a long tele zoom, with results in the Excellent range at 80 and 135mm. At 200mm, image quality fell to Very Good, and at 400mm to Good, a significant improvement over Tokina's first version of this lens. In DxO Analyzer 2.0 tests, it showed surprisingly good distortion control, with Imperceptible barrel distortion at 80mm (0.02%) and Slight pincushion distortion at 135mm (0.22%), 200mm, and 400mm (both 0.29%), another improvement. Edge vignetting, while disappointing, was still better than before, especially at 200mm. Light falloff was gone by f/8 at 80mm, f/9.5 at 135mm and 400mm, and by f/13 at 200mm. At the uniform close focusing distance of about 8.5 feet, maximum magnification ratios ranged from 1:28.5 at 80mm to 1:5.43 at 400mm.