Nikon F2AS PHOTOMIC, Инструкция по эксплуатации

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DEPTH OF FIELD - continued
Lens at f/4:Shallow depth
of field centered on the
main subject.
Depth-of-Field Indicators
Depth of field can be read directly from the distance scale in
meters or feet with the aid of the color-coded depth-offield
indicators engraved on the lens barrel. Each pair of colored
lines on either side of the central distance scale index line
corresponds to f/numbers of the same color on the aperture
scale. To find the depth of field at a particular aperture, first
focus the lens on the subject while looking through the
viewfinder. Then check the numbers on the distance scale to
determine the zone of focus for the aperture in use. The three
photos shown clearly depict the changing depth of field; with
the photo to the right, the field is shallow at the f/4 setting,
while the photo at the far right shows a depth of field extend-
ing from approximately 2.7m (9 ft) to infinity (
∞
)
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