Use the gray scale above (divided into 5% increments) to adjust your monitor brightness and contrast. The black area should be maximum black, and the white, pure white. Each step should be distinguished from it's neighbor.

Below is a link to the calibration charts on the OCEANLIGHT web site. These are very useful in adjusting the brightness, contrast and color of your monitor to display your digital images accurately.

http://www.oceanlight.com/html/about_color.html