One of the most brilliant things Adobe did when they added Photo Filters to Photoshop CS (these filters replicate the old traditional screw-on lens filters) was to make them Adjustment Layers. By doing this, after you apply the Photo Filter (let's say, for example, you used the 81 filter to warm a cool photo), you can get the Brush tool, set your Foreground color to black, and paint over any areas of the photo you don't want to be warmed. This gives you a level of flexibility you wouldn't get any other way. |