LensTip.com

Lens review

Tokina AT-X PRO FX SD 70-200 f/4 VCM-S

16 September 2014
Arkadiusz Olech

8. Vignetting

When you fix the Tokina 70–200 f/4.0 to the Nikon D7000 camera you won’t experience any vignetting problems as it is shown in thumbnails, presented below.

Tokina AT-X PRO FX SD 70-200 f/4 VCM-S - Vignetting


At 70 mm and by f/4.0 aperture the brightness loss in the frame corners is just 10% (-0.31 EV), decreasing to 2% (-0.05 EV) on stopping down to f/5.6. In the middle of the focal range the situation looks even better – at the maximum relative aperture the vignetting amounts to 8% (-0.25 EV), decreasing to 2% (-0.05 EV) on stopping down to f/5.6. The biggest chance to notice any vignetting you get at the maximum relative aperture where, by f/4.0, that aberration reaches 15% (-0.45 EV). On stopping down to f/5.6 you see the vignetting disappear completely, being just 4% (-0.13 EV).


Please Support Us

The coronavirus crisis has been adversely affecting many businesses and, sad but true, ours is not an exception. Despite that difficult situation we would like to preserve continuity and high quality of publications available on all our websites. Still, we are now aware it might be impossible without additional financial help. That's why we would like to ask all those who visit, read, and care about Optyczne.pl, LensTip.com i Allbinos.com for support - it's enough you send us a small sum of money via PayPal. If a lot people decide to support our websites we think we'll stand a chance and survive next months without any lasting harm. We count on your support and understanding, stay safe and be healthy.

- - - - - - - - - - - - - - - - - advertisement - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

The situation changes a bit on full frame – which is understandable – but even there you find no reasons to complain.

Tokina AT-X PRO FX SD 70-200 f/4 VCM-S - Vignetting


At 70 mm focal length and by f/4.0 the vignetting reaches 23% (-0.74 EV) so it still can be called moderate. The results improve a lot by f/5.6 where that aberration decreases to 14% (-0.42 EV) and by f/8.0 where it is only 6% (-0.17 EV).

Employing 135 mm focal length and f/4.0 aperture you must take into account a light fall-off of 21% (-0.67 EV). Stopping down the aperture to f/5.6 that value decreases to 12% (-0.37 EV). By f/8.0 the vignetting won’t be any problem at all, reaching just 5% (-0.15 EV).

At the maximum focal length you get almost the same situation as at the shortest one. The vignetting, while the lens is wide open, amounts to 23% (-0.77 EV) and decreases to 14% (-0.43 EV) on stopping down to f/5.6. By f/8.0 the vignetting is only 5% (-0.15 EV).

The results of the Tokina in this category are very good, especially when you compare them to the performance of the rival Nikkor; that lens’s vignetting in the 135-200 mm range could exceed even 30%.

Tokina AT-X PRO FX SD 70-200 f/4 VCM-S - Vignetting

Tokina AT-X PRO FX SD 70-200 f/4 VCM-S - Vignetting

Tokina AT-X PRO FX SD 70-200 f/4 VCM-S - Vignetting