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E31
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Reference Section
b Sensitivity
The higher the ISO sensitivity, the less light needed for taking pictures.
The higher the ISO sensitivity, the darker the subject that can be shot. Additionally,
even with subjects of similar brightness, pictures can be taken at faster shutter
speeds, and blurring caused by camera shake and subject movement can be
reduced.
• Setting the ISO sensitivity to a high level is effective when shooting dark
subjects, not using the flash, shooting at the telephoto zoom position and
similar situations, but the pictures taken may be slightly grainy.
The icon for the current setting is displayed on the monitor (A12).
• When Auto is selected, the E icon is not displayed at ISO 80, but is displayed
if the ISO sensitivity automatically increases to higher than 80.
• When ISO 80-200, ISO 80-400 or ISO 80-800 is selected, the U icon and the
maximum ISO sensitivity value are displayed.
Rotate the mode dial to A, B, C, D, E, F, N or h M b (Quick menu dial)
(A69) M ISO sensitivity
Option Description
ISO sensitivity
•Auto (default setting): The sensitivity is ISO 80 in bright places; in dark
places the camera automatically raises the sensitivity to a maximum
of ISO 1600.
• X ISO 80-200, Y ISO 80-400, Z ISO 80-800, (fixed range
auto):
Choose the range in which the camera automatically adjusts ISO
sensitivity. The camera does not raise sensitivity beyond the
maximum value in the selected range. Set the maximum value for ISO
sensitivity to control “grain” that appears in images.
•80 to 3200, Hi 1 (equivalent to ISO 6400):
ISO sensitivity is fixed at the specified value. The step value that can
be set for ISO sensitivity step value of the setup menu can be
changed (E74).
Minimum
shutter speed
When the shooting mode is A or C and ISO sensitivity is set to Auto,
ISO 80-200, ISO 80-400 or ISO 80-800, the shutter speed (1/30 to 1
second), at which automatic control of ISO sensitivity starts to function,
is set. The default setting is None. If the exposure is insufficient with the
shutter speed that is set here, the ISO sensitivity is increased
automatically to obtain the correct exposure. If the exposure is still
insufficient even after the ISO sensitivity is increased, the shutter speed
slows down.