149
i
Adjust ISO sensitivity (
0
74).
❚❚
ISO Sensitivity Auto Control
If
Off
is chosen for
ISO sensitivity auto control
in
P
,
S
,
A
, and
M
modes, ISO sensitivity will remain fixed at the value selected by
the user (
0
74). When
On
is chosen, ISO sensitivity will
automatically be adjusted if optimal exposure can not be
achieved at the value selected by the user (flash level is adjusted
appropriately). The maximum value for auto ISO sensitivity can
be selected using the
Maximum sensitivity
option in the
ISO sensitivity auto
control
menu (choose lower values to prevent noise; the minimum value for auto ISO
sensitivity is automatically set to ISO 200). In modes
P
and
A
, sensitivity will only be
adjusted if underexposure would result at the shutter speed selected for
Minimum
shutter speed
. Slower shutter speeds will be used only if optimum exposure can
not be achieved at the ISO sensitivity value selected for
Maximum sensitivity
. If the
ISO sensitivity selected by the user is higher than the value selected for
Maximum
sensitivity
, the value selected for
Maximum sensitivity
will be used instead.
When
On
is selected, the viewfinder shows
ISO-AUTO
and the
information display
ISO-A
. These indictors blink when sensitivity
is altered from the value selected by the user.
ISO Sensitivity Settings
G
button
➜
C
shooting menu
A
Auto ISO Sensitivity Control
Noise is more likely at higher sensitivities. Use the
High ISO NR
option in the shooting
menu to reduce noise (
0
151). Note that ISO sensitivity may be raised automatically when
auto ISO sensitivity control is used in combination with slow sync flash modes (available with
the built-in flash and SB-900, SB-800, SB-600, and SB-400 flash units), possibly preventing the
camera from selecting slow shutter speeds.
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