Owner's Manual

43Reference: More on Photography (All Modes) / ISO Sensitivity
ISO Sensitivity
“ISO sensitivity” is the digital equivalent of fi lm speed. The higher the ISO sensitivity, the less
light needed to make an exposure, allowing higher shutter speeds or smaller apertures.
ISO sensitivity can be set between values roughly equivalent to ISO 100 and ISO 1600 in
steps equivalent to / EV. Values over 1600 are displayed as H 0.3 (ISO 2000 equivalent), H
0.7 (ISO 2500 equivalent), and H 1.0 (ISO 3200 equivalent).
(auto) and Digital Vari-Pro-
gram modes also off er an Auto setting that allows the camera to set ISO sensitivity auto-
matically in response to lighting conditions. The default setting for
(auto) and Digital
Vari-Program modes is Auto, the default setting for P, S, A, and M modes 100.
ISO sensitivity can be selected by pressing the ISO button and rotating the main command
dial until the desired setting is displayed in the control panel. ISO sensitivity can also be
adjusted from the shooting menu (
83).
High ISO NR ( 83)
The higher the ISO sensitivity, the more likely pictures are to be subject to “noise” in the form of ran-
domly-spaced, brightly-colored pixels. Photos taken at ISO sensitivities over ISO 1600 will likely contain
appreciable amounts of noise. The High ISO NR option in the shooting menu can be used to reduce
noise at ISO sensitivities of 400 or more.
7 — ISO Auto ( 88)
This option can be used to enable automatic ISO sensitivity control in P, S, A, and M modes. Sensitivities
of H 0.3, H 0.7, and H 1.0 are not available when ISO auto is on.
ISO Sensitivity
Controls used: button + main command dial (monitor off )