ISO Sensitivity Settings

Adjust ISO sensitivity settings for photographs.

ISO sensitivity: Adjust ISO sensitivity. Select from values between ISO 64 and 25600. Settings of from about 0.3 to 1 EV below ISO 64 and 0.3 to 2 EV above ISO 25600 are also available for special situations.
Auto ISO sensitivity control: If On is selected, the camera will automatically adjust ISO sensitivity when optimal exposure cannot be achieved at the value selected for ISO sensitivity. You can choose the maximum sensitivity to prevent ISO sensitivity being raised too high and the shutter speed below which auto ISO sensitivity control will kick in to prevent under exposure in modes P and A (the minimum shutter speed; choose from values between 1/4000 s and 30 s). The maximum ISO sensitivity for photos taken using an optional flash unit can be selected using Maximum sensitivity with M.