I have been processing a photo of a beach scene in Big Sur with really nice colors in the sand, sea and sky. As I have done with all my photos, I add a mild vignette.
On this photo, the vignette does not look like a darkening of the sky in the corners, it looks more like a gray overlay. In other words, the corners of the photo look 'dirty', not darker.
In going back over my past photos with vignette, I now see the same muddy corners.
Can someone tell me if the vignette in LR actually darkens the colors, or doe it just add a muddy gray?