Why is depth of field important?
Depth of field defines the “feel” of a photograph. A shallow depth of field will direct the eye onto particular details within a photograph and make a subject stand out against a blurred background. They also prevent the eye from being distracted from a busy background that is not relevant to the subject matter. Portraits or close up shots of flowers or insects tend to use shallow depths of field. A larger depth of field ensures more elements within the photo are in focus. Landscape and cityscape shots typically use a larger depth of field, especially when you want to lead the eye through a scene from front to back, say in a perspective image.