I created these videos just to give you a better idea of how these lenses paired with the 0.71x Speedbooster vignette on the GH5s
SIGMA ART 18 – 35MM F1.8
SIGMA ART 50 – 100MM F1.8
As you can see in the Clock shots on both videos there is no noticeable vignetting at all when wide or zoomed in!
The Vignetting in the Grey Card shots have been exaggerated by compressing the shadows in post, the grey card test is purely just to show you how present the vignette is even though it isn’t that noticeable at all.
Grey Card – Raw File
Sigma ART 18 – 35MM @ 18mm, F1.2
Grey Card – Vignette Exageratted
Sigma ART 18 – 35MM @ 18mm, F1.2
