Fundamentals
Understanding Depth of Field: A Visual Guide
Depth of field is the range of distance in your image that appears acceptably sharp. A shallow depth of field means a thin slice of the scene is in focus with the rest blurred. A deep depth of field means everything from near to far is sharp. Understanding what controls it gives you creative power over every photograph you take. The Three Factors That Control Depth of Field 1. Aperture This is the most well-known factor.