by Julieanne Kost
When applying a Post Crop Vignette in Lightroom and/or Camera Raw, don’t forget that you can use the Highlight slider to suppress the vignette from being added in the highlights of the image. This can help keep brighter values in the vignetted area from looking muddy.
Also, when cropping an image and adding a Post Crop vignette, I prefer to first use the Lens Correction panel to remove any vignetting caused by the lens. Removing the lens vignetting (especially if the image is cropped so that part of the lens vignette is cut off) will result in a more even looking Post Crop Vignette.