Depth of field (abbreviated as DOF) is a very important concept that is best understood visually. Use Lens Tutorial to manipulate all your lens setting and see how DOF responds. Choose shallow depth of field to isolate your subject. Set large depth of field to add more detailed objects to the view.
As Wikipedia puts it: Depth of field (DOF) is the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image. Although a lens can precisely focus at only one distance at a time, the decrease in sharpness is gradual on each side of the focused distance, so that within the DOF, the unsharpness is imperceptible under normal viewing conditions.
- Depth of field depends on Aperture, Focal length and camera to subject
- Shallow depth of field blurs everything but the subject in focus, i.e. which is located at distance that the camera lens is currently focused on.
- Near range of DOF is the minimal distance from the lens at which all subjects begin to appear sharp.
- Correspondingly far range is the maximal distance for obtaining sharp detail.
- The DOF is the total distance between near and far ranges.
- Shallow depth of field is typically achieved with telephoto lenses, large apertures and short subject distance.
- Large depth of field on the other hand allows to keep everything sharp: from the front of the camera to the infinity.
- Wide-angle lenses, larger distances and small apertures are best suited for obtaining large DOF.
- Also for cameras with smaller imaging sensor the DOF is larger.
Shallow depth of field.
Large depth of field