Owner's Manual

Adjust ISO sensitivity (0 74).
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II ISO Sensitivity Auto Control
If Off is chosen for ISO sensitivity auto control in P, 5, 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 Pand 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.
D 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 150 sensitivity may be raised automatically when
auto 150 sensitivity control is used in combination with slow sync flash modes (available with
the built-in flash and 58-900, 58-800, 58-600, and 58-400 flash units), possibly preventing the
camera from selecting slow shutter speeds.
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