The zone system is a system developed by Ansel Adams and Fred Archer in 1939. The system guarantees the correct exposure in every shot.

What is it ?

The Zone system separates the highlights and shadows in a image into 20 different sections so that the fill scale is guaranteed in each shot, buy having the whole range within an image it becomes sharper and more thought-provoking. The scale is measured in Roman numbers and increases from the lightest panel to the darkest