Determine which area of the photograph you want to be properly exposed. A properly exposed object appears its normal color and hue.
Place the graphic on a stable object, if you are using a graphic such as wooden letters or a cardboard sign. If necessary, tape the graphic to an object using clear tape.
Hold a light meter over the portion of the image you want in focus. Point the light meter toward the camera rather than toward the object if you want the object lit. If you want the background lit, point the light meter toward the source of light.
Turn the camera to the appropriate f-stop and shutter speed as noted on the light meter.
Point the camera toward the object and hold the camera steady. Press the shutter release button to take the picture.
Examine the picture if you are using a digital camera. If you want the picture less illuminated, turn the f-stop up one or two stops. If you want the picture more illuminated, turn the f-stop down one or two stops.