Wide Aperture
Shutter Speed
Shutter Speed is the time between when you click to take the picture, and when the picture is actually taken. This can be seconds, minutes, hours or more. This affects the light and quality of the picture based on the time and how long the shutter is open.
Fast Shutter Speed, pictured above. Slow Shutter speed pictured below.
White Balance:
These are three examples of how White balance differs. Shown is this order are pictures using: Incandescent, Fluorescent, and dull (no change of white balance).
ISO
100 ISO
400 ISO
4500 ISO