Adjust the camera’s sensitivity to light.
Set sensitivity using A SHOOTING SETTING > ISO.
|Sensitivity is automatically adjusted in response to shooting conditions according to combination of standard and maximum sensitivity and minimum shutter speed chosen for ASHOOTING SETTING > ISO. Choose from AUTO1, AUTO2, and AUTO3 (aAUTO).|
|100–12800||Adjust sensitivity manually. Selected value is shown in display.|
|Choose for special situations. Note that mottling may appear in pictures taken at H, while L reduces dynamic range.|
Sensitivity is not reset when the camera is turned off.
If desired, you can use DBUTTON/DIAL SETTING > COMMAND DIAL SETTING to configure the camera so that ISO sensitivity can be adjusted using the front or rear command dial.
High values can be used to reduce blur when lighting is poor, while lower values allow slower shutter speeds or wider apertures in bright light; note, however, that mottling may appear in pictures taken at high sensitivities.
Choose the base sensitivity, maximum sensitivity, and minimum shutter speed for AUTO1, AUTO2, and AUTO3.
|MIN. SHUTTER SPEED||1/500–1/4 SEC, AUTO|
|MIN. SHUTTER SPEED||AUTO|
The camera automatically chooses a sensitivity between the default and maximum values; sensitivity is only raised above the default value if the shutter speed required for optimal exposure would be slower than the value selected for MIN. SHUTTER SPEED.
If the value selected for DEFAULT SENSITIVITY is higher than that selected for MAX. SENSITIVITY, DEFAULT SENSITIVITY will be set to the value selected for MAX. SENSITIVITY.
The camera may select shutter speeds slower than MIN. SHUTTER SPEED if pictures would still be underexposed at the value selected for MAX. SENSITIVITY.
If AUTO is selected for MIN. SHUTTER SPEED, the camera will automatically choose a minimum shutter speed approximately equal to the inverse of the lens’ focal length, in seconds (for example, if the lens has a focal length of 50 mm, the camera will choose a minimum shutter speed in the neighborhood of 1/50 s). The minimum shutter speed is not affected by the option selected for image stabilization.