Specifying opacity, flow, strength, or exposure

You can specify opacity, flow, strength, or exposure for the following tools:

• Opacity specifies the maximum amount of paint coverage applied by the Brush, PaintBrush, Pencil, Clone Stamp, Pattern Stamp, History Brush, Art History Brush, Gradient, and Paint Bucket tools.
• Flow specifies how quickly paint is applied by the Brush tool. A low setting produces a lighter stroke.
• Strength specifies the strength of strokes applied by the Smudge, Blur, Sharpen, and Sponge tools.
• Exposure specifies the amount of exposure used by the Dodge and Burn tools.

To specify opacity, flow, strength, or exposure:

Enter a value, or drag the slider for Opacity, Flow, Strength, or Exposure in the options bar.

Opacity, flow, strength, or exposure can range from 1% to 100%. For transparent paint or a weak effect, specify a low percentage value; for more opaque paint or a strong effect, specify a high value.

Press a number key to set a tool's opacity, flow, strength, or exposure in multiples of 10% (pressing 1 sets to 10%; pressing 0 sets to 100%).