Camera Raw Vignetting Correction

[Owen]

Hello everyone,
I read Bill Caulfeild-Browne's comparison of the Canon 24-105 f4 L IS vs. the Canon 24-70 f2.8 L.  In this comparison, he states that the vignetting seen at 24 mm. on the 24-105 lens can be corrected in Camera Raw.
I would like to know how to do this as it would be of great help with some of my shots made at f4 and 24 mm.
I welcome all help.
Thankyou,
Owen

[Lisa Nikodym]

Correcting for vignetting in ACR couldn't be simpler.  On the "Lens" tab in ACR, there's a section called "Vignetting" with an "Amount" slider bar.  Simply slide the bar until you see the dark corners lighten up to blend well with the rest of the image.  If the region over which it lightens isn't quite the right size for your particular image, there's also a "Midpoint" slider which adjusts it.

Lisa

[Owen]

Thankyou you have been most helpful.
Owen