ISO is one of the three settings that make up the exposure triangle (the other two being aperture and shutter speed). Understanding what this setting does and how to utilize it properly is an important step in fully mastering the art of photography. This guide will give you the rundown!

Not only is aperture an essential component of the exposure triangle, but it is also a camera setting that gives you a great deal of creative control. As such, every photographer must understand how it works!