PowerTo turn on the power, press the main POWER button as indicated in thediagram on the left. (The red light on the front of the base of the cameraindicates that the unit is off. The red light disappears once the unit ispowered on.)AWCAfter the document camera is turned on, it will perform an automatic-white balance / color (AWC) adjustment.For best results and most accurate color, place a white piece of paper under the lens when you turn the uniton. Printed text on white paper is also OK. You can re-adjust the color at any time by pressing the AWCbutton.INT/EXTPressing the INT/EXTbutton allows thedocument camera toswitch betweenprojecting what is underthe document camera(INTERNAL) and whatis on your computerscreen (EXTERNAL).Auto-focus (AF)Although you can pressthe FOCUS + and –buttons to focusmanually, pressing theAF button once willfocus for youautomatically.