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C O L U M N
C O L U M N
About Depth of Field
The section provides a basic explanation of the relationship
between focus and depth of field.
• Depth of field
When focusing, depth of field should always be considered. Depth of field
is the area of your photo that is most sharply in focus in front of and
behind the subject in which the lens is focused. Depth of field varies
according to shooting distance, focal length and, above all, aperture.
Smaller apertures (represented by larger f-numbers) will produce a deeper
depth of field where the background and foreground remain sharp; larger
apertures (represented by smaller f-numbers) will produce a shallower
depth of field where the background becomes blurred. Similarly, a shorter
shooting distance or a longer focal length will produce a shallower depth
of field, and a longer shooting distance or a shorter focal length will
produce a deeper depth of field. Note that depth of field tends to be
shallower in front of the subject in focus and deeper behind it.
Large aperture f/2.8 Small aperture f/32
P930_En 04.10.19 7:19 PM Page 164