Exploring Depth of Field…
DEPTH OF FIELD – The amount of space in front of and behind the subject of your photograph that appears in focus.
The plane of critical focus
The area that you focus in a photograph through your lens is called the ‘Plane of critical focus’, this is the area that appears tack-sharp in the image. The DOF refers to the zone of focus in infront and behind the plane of critical focus that appears sharp in the image.
From the book ‘Composition photo workshop’ I have taken an example of there DOF image to help myself understand the concept a little better.
FIRST IMAGE = Has a out-of-focus background = Shallow dept of field. Area in-front and behind is shallow
SECOND IMAGE = Background in focus = Deep depth of field. Area in-front and behind is deep
Practising the method: