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Auto ISO Sensitivity Control
If On is selected for ISO sensitivity settings > Auto ISO sensitivity control in the
shooting menu, ISO sensitivity will automatically be adjusted if optimal exposure can
not be achieved at the value selected by the user (ISO sensitivity is adjusted
appropriately when the flash is used).
1 Select Auto ISO sensitivity control for
ISO sensitivity settings in the shooting
menu.
To display the menus, press the G button.
Select ISO sensitivity settings in the
shooting menu, highlight Auto ISO
sensitivity control and press 2.
2 Select On.
Highlight On and press J (if Off is selected,
ISO sensitivity will remain fixed at the value
selected by the user).
3 Adjust settings.
The maximum value for auto ISO sensitivity
can be selected using Maximum sensitivity
(the minimum value for auto ISO sensitivity
is automatically set to ISO 100; note that if
the ISO sensitivity selected by the user is
higher than that chosen for Maximum sensitivity, the value selected by the
user will be used instead).
In modes P and A, sensitivity will only be adjusted if
underexposure would result at the shutter speed selected for Minimum
shutter speed (
1
/4000–1 s, or Auto; in modes S and M, ISO sensitivity will be
adjusted for optimal exposure at the shutter speed selected by the user).
If
Auto (available only with CPU lenses; equivalent to
1
/30 s when a non-CPU lens
is used) is selected, the camera will choose the minimum shutter speed based
on the focal length of the lens (auto shutter-speed selection can be fine-tuned
by highlighting Auto and pressing 2; for example, even faster values than
those usually selected automatically by the camera can be used with telephoto
lenses to reduce blur).
Shutter speeds slower than the minimum value may be
used if optimum exposure can not be achieved at the ISO sensitivity value
selected for Maximum sensitivity.
Press J to exit when settings are complete.
(P
,
S
,
A
, an
d
M
M
o
d
es
O
n
l
y
)
G button