Digital Photography: Learn about Shutter Speed, ISO And Aperture: A Complete Beginner's Guide

Without a strong grasp of ISO, Shutter Speed, and Aperture - the Three Kings of Photography, it's impossible to capture decent photographs. Understanding how ISO, shutter speed, and aperture interact allows photographers to take complete control of the scene by operating the camera manually. Shutter Speed is the length of time a camera shutter is open to expose light into the camera sensor. Aperture controls the depth of field, which is the portion of a scene that appears to be sharp. ISO is a way to brighten photos if you can't use a longer shutter speed or a wider aperture.