Depth of FieldWhat is depth of field photography?
Depth of field is a function of aperture (f-stops). DOF refers to how much of the scene is in focus, both in front of and behind the subject or whatever point the lens is focused. F-stop (aperture) controls the range of focus from any given subject distance. Since the f-stop is what controls this light, the easiest way to remember it is: Small number=small f-stop (f 1.8) small amount will give you small amount of picture in focus Large number= large f-stop (f 32) will give you a large amount of picture in focus Ways to Control Depth of Field Distance (to the subject): If you want to make the background blurred, get very close to your subject. Aperture Size: A smaller aperture opening (or a larger aperture value) will allow the camera to focus on more depth. A larger aperture opening (or smaller aperture value) will produce a shallower depth of field. Focal Length: By zooming in and out, you change the distance between the lens and the back of your camera. This change in focal length can also affect the amount of focused depth in a photograph. Watch this video for a more in depth discussion of ways to control Depth of Field. |
Only the foreground is in focus while the middle and background are out of focus.
|
All depths (fore, middle, and background) are in focus.
|