2-20. DEPTH OF FIELD INDICATOR. Some cameras have depth of field indicators to
show the approximate depth of field at various distances when using different
lens stops. Figure 2-28 shows two settings, one when the lens is focused at 6
feet (on the left) and one when the lens is focused at 25 feet (on the right).
Figure 2-28.
Depth of field indicator.
a. In the setting on the left figure, the lens is focused at 6 feet.
The
depth of field is as follows:
SETTING
DEPTH OF FIELD
f/4.5
5
3/4 to 6 1/4 ft.
f/5.6
5
1/2 to 6 1/2 ft.
f/8
5
1/4 to 6 3/4 ft.
f/11
5
to 7 ft.
f/16
5
to 7 1/2 ft.
f/22
4
3/4 to 8 ft.
f/32
4
1/4 to 10 ft.
b. In the setting on the right (above), the lens is focused at 25 feet.
The depth of field is as follows:
SETTING
DEPTH OF FIELD
f/4.5
37 to 22 ft
f/5.6
45 to 18 ft
f/8
50 to 16 ft
f/11
65 to 14 ft
f/16
100 to 13 ft
f/22
Inf to 11.5 ft
f/32
Inf to 9 ft
110
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