A Short Course Book
Using Your Digital Camera
A Guide To Great Photographs

When Automatic Exposure Works Well

Most scenes that you photograph have an overall brightness of middle gray. Some areas of the scene may reflect 90% of the light and other parts may reflect 5%, but overall the average amount of light reflecting from the scene is 18%, the amount reflected by a middle gray subject.

Whenever you photograph a normal scene with this average brightness, your automatic exposure system exposes it correctly. Typical middle gray scenes include the following:

  • Scenes in bright sunlight where the subject is front-lit by a sun that is behind you when you face the scene.
  • Scenes on overcast days or under diffused light, such as in the shade or in evenly lit scenes indoors.

This landscape of Canyon de Chelly was taken on an overcast morning using autoexposure.

This portrait, taken under a cloudy bright sky is perfectly exposed with autoexposure.



Home  |  Shortcourses™ Bookstore  |  Curtin's Guide to Digital Cameras and Other Photographic Equipment  |  Using Your Digital Camera  |  Displaying & Sharing Your Digital Photos  |  Digital Photography Workflow  |  Image Sensors, Pixels and Image Sizes   |  Digital Desktop Lighting   |  
Hot Topics/ About Us


Site designed by Steve Webster and created by i-Bizware solutions, freelance web development, Anil Dada Warbhe, Website development iBizware Solutions, India.iBizware Solutions, India.