The Brightness slider adjusts the brightness of the image by changing the exposure time of the image. The larger the brightness level the longer the exposure time. This value is scaled from 0 to 100 percent. There are three ways to move the slider:

  1. You can place the cursor over the slider and left-click and hold it. While holding, move the cursor left or right to adjust as necessary.
  2. You can left-click on the slider then use the Left/Right arrow keys to step the values up or down.
  3. You can click inside the box and manually type numbers into the field. NOTE - the value will not change until you exit the field. You can either press the TAB key or click in another box.

In the attached video the three adjustment methods are displayed. You can also see the effect that moving the slider has on the image.