118
S
A
The ISO Sensitivity Menu
ISO sensitivity can also be adjusted using the
ISO
sensitivity settings
option in the shooting
A
ISO Sensitivity
The higher the ISO sensitivity, the less light needed to make an
exposure, allowing faster shutter speeds or smaller apertures, but the
more likely the image is to be affected by noise (randomly-spaced
bright pixels, fog, or lines). Noise is particularly likely at settings
between
Hi 0.3
and
Hi 4
.
A
Hi 0.3–Hi 4
The settings
Hi 0.3
through
Hi 4
correspond to ISO sensitivities 0.3–4 EV
over ISO 25600 (ISO 32000–409600 equivalent).
A
Lo 0.3–Lo 1
The settings
Lo 0.3
through
Lo 1
correspond to ISO sensitivities 0.3–
1 EV below ISO 100 (ISO 80–50 equivalent). Use for larger apertures
when lighting is bright. Contrast is slightly higher than normal; in most
cases, ISO sensitivities of ISO 100 or above are recommended.
A
See Also
For information on choosing the ISO sensitivity step size, see Custom
Setting b1 (
ISO sensitivity step value
;
321). For information on
using the
High ISO NR
option in the shooting menu to reduce noise at
high ISO sensitivities, see page 308.
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