Lightroom Adjustment Brush

The Adjustment Brush is an awesome tool that you can use to make local edits (vs global changes) to photo qualities including exposure, brightness, saturation, contrast, and others, like Soften Skin and Teeth Whitening.

• Press "K" to turn on or off the Adjustment Brush
• Reset all the settings first (the last setting will be shown)
• There are two circles with the brush, the inner circle will be fully affected (the size) and the outer circle is the feather.
• Check "Auto Mask"... Auto masking attempts to sense the edges of whatever it is in your photo that you’re painting in order to help you paint only inside your intended area.  You can turn on and off the Auto Mask, just hold the <Control> key as you paint
• Use the [ and ] key to decrease and increase the Size of the brush tip
• In the Brush area you will see two brushes, A and B. You can switch between the two by clicking on the A or B indicator. Each brush has its own Size, Feather, Flow and Density settings, and AutoMask can be enabled for either or both of the brushes. Having two brushes lets you configure each differently and switch easily between the two.
• Each brush (A or B) can be switched into the third brush mode – Erase mode (to erase the brush strokes) by holding the Alt key (Option on the Mac) as you paint with either brush.
• Press "O" to reveal / hide an overlay that shows where the brush strokes have been applied.  <Shift> to change to another color to show the overlay (it helps when the overlay color conflicts with the image)
• Flow is the percentage applied for each brush
• Press "H" to show / hide a pin (where you have initiated brushes).  The active pin is denoted by a black center.  Move the mouse over the pin will show the overlay of the brush.  If there are more than one pin, select on the pin to select it as the active one.
• Press "Reset" to clear all the brushes
• Press "Delete" to clear the active brush
• In the Effect area is a Color option which allows you to paint over an image with a color of your choice. To do this, select the color to use and then paint over the area to apply it to. You can use this to colorize a black and white image or, paint over a dark blue area with yellow to make it dark green.