Now, I know what you're thinking. Math? In photography?!
Yeah, girl. Math in photography. But it's actually fun stuff, I promise. Here are some easy math-isms that you can use to make your own photography as awesome as possible :)
The Rule of Thirds
The Rule of Thirds states that an image should be imagined as divided into nine equal parts by two equally-spaced horizontal lines and two equally-spaced vertical lines, and that important compositional elements should be placed along these lines or their intersections.
Ratios and Focus
The best portrait pictures look like this:
The subject is in focus, but the background is not. But how do you make sure this occurs? It's all about the ratio of the distance between the camera and subject and between the subject and background.
If A < B, then the background of the picture will be out of focus while the subject is in focus.
In this picture, the chiminea is 9 feet away from the branch hanging in front of it and the branch is 9 feet from the camera. The background is almost as in focus as the subject.
When the distance between the camera and subject is cut in half, the background becomes less focused.
When the distance between the camera and subject is only 1 foot, the background again becomes noticeably less focused.
If A > B, then the background of the picture will be in focus while the subject is in focus.
The distance between the wall and chiminea is 6 feet while the distance between the subject and camera is 9 feet. Both the subject and the background are in focus.
When you put all of this information to use, you end up with pictures that are perfectly in focus or perfectly out of focus, and the rule of thirds can do wonders for composition.