Things You'll Need
Instructions
Turn the camera on and set it to "Aperture priority" by turning the exposure mode dial located on the top of the camera to "Av" for aperture value.
Turn the dial located by the shutter release and set the aperture to the widest smallest number. This will set the lens to its largest opening.
Hold the camera up to your eye, press the shutter release halfway down to engage the camera's metering program. The camera will now give you shutter speed it needs to take a properly exposed picture.
Attach the camera to a tripod if the shutter speed is 1/30th of a second or less. Depending on your ability, you may be able to handhold the camera at this shutter speed or less. If you are unsure, then attach the camera to a tripod. If you do not have a tripod or need a faster shutter speed, then you'll need to adjust camera's light sensitivity.
Press and hold the "ISO" button and turn the dial by the shutter release to increase the camera's ISO. ISO is the camera's light sensitivity setting. With each increase in ISO setting, your shutter speed will also increase. Increase the ISO until you are at a shutter speed you can use to take your picture.