When On is selected, the viewfinder and

 

 

control panel show ISO-AUTO. When

 

 

sensitivity is altered from the value

 

 

selected by the user, these indicators

Control panel

Viewfinder

flash.

 

 

ATurning Auto ISO Sensitivity Control On or Off

You can turn auto ISO sensitivity control on or off by S pressing the W(S) button and rotating the sub- command dial. ISO-AUTOis displayed when auto ISO

sensitivity control is on.

W(S) button Sub-command dial

AAuto ISO Sensitivity Control

Noise (randomly-spaced bright pixels, fog, or lines) is more likely at higher sensitivities. Use

the High ISO NR option in the shooting menu to reduce noise (see page 228). If the shutter speed selected for Minimum shutter speed is slower than sync speed selected for Custom Setting e1 (Flash sync speed, 0 244), the sync speed will be used as the minimum shutter

speed for auto ISO sensitivity control during flash photography. Note that ISO sensitivity may be raised automatically when auto ISO sensitivity control is used in combination with slow sync flash modes (available with the built-in flash and the optional flash units listed on page 304), possibly preventing the camera from selecting slow shutter speeds.

When auto ISO sensitivity control is in effect, the adjusted and selected values appear in the information display as shown at right.

Selected value

Adjusted value

82