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Programmed Auto Exposure Modes
(PH
, P)
Programmed auto operation is ideal
for
quick operation and is
the simplest method for exposure control. Together with Matrix
Metering,
it
is
very reliable.
Programmed Auto Exposure modes can only be used with
lenses having a built-in
CPU
such as AF-Nikkor lenses and the
Nikkor 500mm
fl4
P.
For lenses without a
CPU
, exposure mode
is automatically set
to
Aperture-Priority Auto
(A).
Setting the
exposure
mode
to
PH
(high-speed program)
or
P (normal
program)
lets you choose normal or high-speed program.
For
a higher shutter speed, such as when using a telephoto lens,
or for shooting a fast-moving subject, PH
is
recommended.
Dual Program Chart (e.g., 50mm f/1 .4, ISO 100)
The
EV
(Exposure Value) chart demonstrates the difference
between the F4's normal and high-speed programs. Follow
either colored line
to
where
it
intersects a diagonal line. This
shows the combination of aperture (vertical line) and shutter
speed (horizontal line).
Metering
range
EVO
-
ZI
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---
Normal
program
---
High-speed
progr
am
51