Nikon SB4H04000301 Manuel D’Utilisation

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Sensitivity (ISO equivalency) is the digital equivalent of fi lm speed.  The higher 
the sensitivity, the less light needed to make an exposure, allowing higher 
shutter speeds and smaller apertures.  Much as fi lm with a high ISO rating 
tends to produce “grainy” images, high sensitivities may be associated with 
“noise”—randomly spaced, brightly colored pixels concentrated in dark parts 
of the image.  Noise reduction (

 109) can be used to reduce noise in pictures 

taken at shutter speeds of slower than ¼ s.

In 

  (auto) and scene modes, the camera automatically raises sensitivity 

when lighting is poor.  In P,  S,  A, and M  modes, the following options are 
available:

Approximately equivalent to ISO 50.  Recommended unless lighting is poor or 
faster shutter speeds are required (e.g., when subject is moving).  Noise may 
appear in pictures taken at settings above this value.

100 Approximately equivalent to ISO 100.
200 Approximately equivalent to ISO 200.
400 Approximately equivalent to ISO 400.

Approximately equivalent to ISO 50 under normal conditions; when lighting 
is poor, however, camera automatically compensates by raising sensitivity to 
maximum of ISO 200 equivalent).  ISO icon appears in control panel and shoot-
ing display when sensitivity is raised.

P, S, A, and M Modes Only

To choose a value for sensitivity:

SENSITIVITY

50

200
400

100

Auto

Display options.

SENSITIVITY menu displayed.

 *

* In place of steps 2–4, selection can be made by rotating command dial (

).  Setting 

is displayed in control panel while command dial is rotated.

SENSITIVITY

ISO感度設定

Sensitivity