Black and White & Creative Image Editing in Lightroom - Black and White in Photoshop CS4 and Photoshop Lightroom - page 193

● The Amount slider controls the amount of vignette you can apply to

the image. A positive amount will lighten the vignette and a negative
amount will darken it.

● The Midpoint slider controls the distance the vignette ef ect extends

into the middle of the image. A Midpoint of 0 applies the Vignette
amount as far into the middle as is possible.

● The Roundness slider controls the shape of the inside edge of the

vignette. The higher the Roundness setting, the rounder the inside of the
vignette ef ect will be. A +100 setting will create a circular vignette ef ect.

● The Feather slider determines how softly the vignette fades into the

middle of the image. A setting of 0 will have no fading (or softening),
while a +100 setting will apply the maximum amount of fading from the
center, or lightest point, to the edges, or darkest points.

Note:
When editing crop
settings in the Crop
overlay mode, the
vignette ef ect will be
temporarily disabled.