108
S
When On is selected, the viewfinder and
control panel show ISO-AUTO.
When
sensitivity is altered from the value
selected by the user, these indicators
flash and the altered value is shown in
viewfinder.
AAuto ISO Sensitivity Control
Noise (randomly-spaced bright pixels, fog, or lines) is more likely at higher sensitivities.
Use
the High ISO NR option in the shooting menu to reduce noise (see page 218).
When a flash
is used, the value selected for Minimum shutter speed is ignored in favor of the option
selected for Custom Setting e1 (Flash sync speed, 0234). 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 the optional flash units listed on page 293),
possibly preventing the camera from selecting slow shutter speeds.
ATurning Auto ISO Sensitivity Control On or Off
You can turn auto ISO sensitivity control on or off by
pressing the W (S) button and rotating the sub-
command dial.
ISO-AUTO is displayed when auto ISO
sensitivity control is on.
Control panel Viewfinder
W (S) button Sub-command
dial