Concepts in Photography
178
Correlation between focal length, angle, and
perspective
Focal length, which is measured in millimetres, is the distance between the middle of the
lens to its focal point. It affects the angle and perspective of taken photos. A short focal
length translates into a wide angle, which allows you to take wide shots. A long focal length
translates into a narrow angle, which allows you to take telephoto shots.
Short focal length
Long focal length