Depth of Field

• also called focus range or effective focus range
• the distance between the nearest and farthest objects in a scene that appear acceptably sharp in an image.
• In some cases, it may be desirable to have the entire image sharp, and a large depth of field(deep focus) is appropriate.

 

•  Whereas in other cases, a small depth of field(shallow focus) maybe more effective, emphasizing the subject while de-emphasizing the foreground and background.