Yashica Lynx-14E - Understanding Depth of Field; Depth of Field Explained

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Aperture set at f/1.4
objects in the back-
ground appear blurr ed
and out of focus.
Aperture set at f/16
objects in th e back-
ground appear sharply
focused.
By depth of field, it is meant the range over
which objects in the foreground and background
appear acceptably sharp when the camera lens
is focused on a subject at a given destance.
The depth of field becomes more extensive when
the lens aperture is closed to a smaller opening
and
I ikewise increases in proportion to the camera-
to-subject distance.
The depth of field can be determined by referring
to the table on the following page or by directly
reading off the depth - of-field scale engraved on
the lens barrel.
I
n case the camera lens is focused on a subject at
a distance
of two meters and the correct aperture
setting
is f/16, the range indicated by the figure
"16" on both side of the index (1) is the depth
of fie ld. I n other words, all objects within the
range of about 1.3 meters to 4 meters will
appear acceptably sharp on the film plane.