Nortel Networks S4000 - Manual (Page 66)

54
Shooting Options: Shooting Menu (A (Auto) Mode)
More on
Sh
ooting
ISO Sensitivity
Sensitivity is a measure of the camera’s response to light. The higher the sensitivity,
the less light is needed to expose an image. Although high ISO sensitivity settings
are suited to pictures of moving subjects or those taken under dim lighting, high
sensitivity settings are often associated with “noise”—randomly spaced, brightly
colored pixels— concentrated in dark portions of images.
At the settings other than
Auto, the current setting is displayed in the monitor
(
A 11). If Auto is selected and the sensitivity is raised above ISO 80, the E icon
will be displayed ( A 43). When Fixed range auto is selected, z and the
maximum value of ISO sensitivity is displayed.
B
Notes on ISO Sensitivity
• There may be functions with which this setting cannot be enabled. See “Camera Settings that
Cannot Be Applied Simultaneously” ( A 58) for more information.
• When the ISO sensitivity setting is set to any option other than Auto, Motion detection (A 146)
is disabled.
A (auto) M F (Shooting menu) M ISO sensitivity
Auto (default setting)
Sensitivity is ISO 80 under normal conditions; when lighting is poor, the camera
compensates by raising sensitivity to a maximum of ISO 1600.
Fixed range auto
Choose the range in which the camera automatically adjusts ISO sensitivity, from
ISO 80-400 or ISO 80-800. The camera will not increase sensitivity beyond the
maximum value in the selected range. Set the maximum value for ISO sensitivity for
effective control over the amount of “grain” that appears in images.
80, 100, 200, 400, 800, 1600, 3200
Sensitivity is locked at the specified value.