Hi Robin, This screen capture is from a lesson in my Better to Best Color in Digital Photography class at BetterPhoto. But it does show something important, the use of the Threshold screen when using Levels to set blacks. This strongly affects colors. See my Web site, www.robsheppardphoto.com, and look for two things: Technique of the Month (March, Working Color) and Articles (Color Secrets) for detailed explanations of this. Rob