I have this lens too and tried it on my D700 @ 16mm. Great value in this lens when you can use it on Dx AND Fx! The same goes for my beloved Dx Sigma ART 18-35mm f/1.8 where it covers the FF-circleprojection from about 30mm upwards to 35mm without too much vignetting.
:o)
Best regards,
Walter

11-16mm Tokina on full frame, single raw file.
PS6, Efex Viveza plug-in for HDR like structural strengthening.