Add a Vignette Effect

What a vignette does and why it works

A vignette darkens the edges of a frame while leaving the centre brighter. It works because the eye is drawn to the brighter, more detailed area, so darkening the periphery reduces competition and guides attention. That is why it is one of the oldest and most reliable photographic effects, and why it appears in portraiture, product photography, and cinematic work. The effect is a function of distance from the centre, so it is always symmetric unless applied to part of the frame.

NoteFeathering matters more than intensity. A hard edge makes the vignette look pasted on.

Why a strong vignette looks cheap

Push the intensity far enough and the corners go almost black, which reads as an old digital camera effect rather than a deliberate choice. It also does real damage: detail in the corners is lost, a vignette that is too dark competes with the subject, and on a modern display the crushed corners look like a processing error. A gentle vignette that you might not consciously notice is doing the job correctly. If you can see it clearly as a dark ring, it is too strong.

• Crushed corners lose real detail, not just brightness.
• Too dark and it competes with the subject rather than directing to it.
• A visible hard ring looks pasted on.
• A gentle vignette works by being nearly subliminal.
• If you can clearly see it as a dark ring, reduce the intensity.

Real vignetting versus an added one

Photographs taken with a fast wide aperture lens often have natural vignetting, where the corners are darker because of the optics, and a software vignette is often used to exaggerate that. It is worth knowing which you have, because an added vignette over an image that already has strong natural vignetting will look doubled and heavy. Checking whether the corners are already darker before adding an effect is a quick step that prevents the most common version of this mistake.

• Fast wide aperture lenses produce natural vignetting in the corners.
• A software vignette over that will look doubled and heavy.
• Check whether the corners are already dark before adding an effect.
• Correcting a natural vignette is a separate operation from adding one.

Getting the shape right on a wide image

A vignette derived from a circle is usually right, but on a wide frame it can produce a visible oval that reads as an artefact rather than a shading. Most tools scale the falloff to the shorter edge, which keeps it proportional, and a slight roundness adjustment can correct a stubborn case. On a portrait image the same parameter behaves differently because the frame is taller. Checking the shape rather than assuming is worth a moment when the frame is unusually proportioned.

• Scale the falloff to the shorter edge for a proportional result.
• On a wide frame a circular vignette can read as an oval artefact.
• Roundness adjustments correct a stubborn case.
• A wide and a tall frame need different roundness values.