the vignetting tool allows you to adjust the brightness of the corners of your image, either elliptical or circular; it has three methods to select; works with presets


midwinter beach, with vignette

Capture One Vignetting

With Capture One Vignetting you add a mood to an image
fisherman repairing his boat

Capture One High Dynamic Range

The HDR tool can adjust the darkest and brightest areas of your image