Rule of Thirds

Information from “Rule of Thirds” by Cambridge in Colour.

Rule of Thirds

The rule of thirds states than an image is most pleasing when its subjects or regions are composed along imaginary lines which divide the image into thirds — both vertically and horizontally.

For landscapes, this usually means having the horizon align with the upper or lower third of the image. For subjects, this usually means photographing them to either side of the photo. This can make landscape compositions much more dynamic, and give subjects a sense of direction.

Cropping Rule of Thirds

Original pictures can be improved by cropping to fit the rule of thirds.

Is it absolutely necessary?

NO!!! What's usually most important is that your main subject or region isn't always in the direct middle of the photograph.

In abstract or repetitive/pattern based photographs, for instance, the rule of thirds does not come into play.