A render showing a strong vignetting effect darkening the edges of the image. Image courtesy of Serkan Celik
Vignetting is an artifact that darkens an image around the edges due to camera optics. The Devignetting slider removes the vignetting effect partially or completely by dragging it from 0 to 100%, where 0 means no vignetting elimination (dark edges) and 100 mean full vignetting elimination (clean edges).
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