The DSLR Reflective Light Meter
Tuesday, May 12, 2009
Exposure is the total amount of light allowed to reach the image sensor during the process of taking a photograph. We've seen there are 3 things that we can adjusted to control that exposure: the lens aperture, the shutter speed and the ISO sensitivity.
Your DSLR has a built-in reflective light meter. It tells you if your current settings will make a good exposure or an over/under exposure.