How to Dodge and Burn Without Destroying Your File (The Non-Destructive Way)
Early in my retouching career, I burned through a portrait by painting directly on a duplicate layer with the actual Dodge and Burn tools. The highlights went gray, the shadows went muddy, and my client very politely told me the result looked “a little plastic.” She was being generous. The problem wasn’t my eye for light and shadow. It was that I had no way to go back and correct the intensity without starting over completely.