Depth of Field P. 1


Depth of field (DOF) is the distance between the nearest and the farthest objects that are in acceptably sharp focus in an image captured with a camera. The DOF is controlled by the lens aperture diameter, which is usually specified as the f-number (the ratio of lens focal length to aperture diameter). Reducing the aperture diameter (increasing the f-number) increases the DOF 
Shallow depth of field is the short distance between near and far focus. With a back focus setting, you will not be using depth of focus. I can use DOF when I am trying to show an establishing shot of a location and shallow DOF when I am trying focus on a specific object or subject.


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