Relative Brightness

Relative Brightness

Relative Brightness is a comparison of the brightness of any two objects. This can be done through a specific mathematical equation or simply looking at them and making a judgment. It is also used as a term to compare binoculars. The higher the relative brightness of the binoculars is, the brighter the image will be because more light is taken in the exit pupil (part of the lens of the binoculars.