Tokina AT-X 116 PRO DX AF 11-16 mm f/2.8 review - Vignetting

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Tokina AT-X 116 PRO DX AF 11-16 mm f/2.8

25 May 2009

Arkadiusz Olech

8. Vignetting

This aberration is hard to avoid in ultra-wide lenses and particularly in fast ones. Take Canon 10-22 mm, which produced a score of 47% at 10 mm. Nikkor 12-24 on the other hand, shows the largest ‘vignette’ at its maximum focal length, namely 38% at 24 mm.

How does Tokina perform, compared to these? At the focal length of 11 mm and maximum aperture, the luminance loss in the corners reaches 36% (-1,29 EV). At F/4.0, the vignetting amounts 19%, 13% at F/5.6 and finally, at F/8, it nears 10%.

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In the middle of the range, the situation improves noticeably. Corner darkening at maximum aperture amounts 27% (-0,92 EV). It becomes virtually invisible (12%) at F/4.0 so there’s no need to stop down any further.

The vignetting is smallest at maximum focal length where for maximum aperture it reaches 20% (-0.66 EV). Again, stopping down by 1 EV causes no forther problems with this aberration (12%).

While Tokina’s vignetting is hard to miss, it still outperforms its competitors in this category, being the fastest one.