ISO Sensitivity Settings

Adjust ISO sensitivity settings for photographs.

ISO sensitivity: Adjust ISO sensitivity. Select from values between ISO 100 and 51200. Settings of from about 0.3 to 1 EV below ISO 100 and 0.3 to 5 EV above ISO 51200 are also available for special situations.
Auto ISO sensitivity control: If On is selected, the camera will automatically adjust ISO sensitivity when optimal exposure can not 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 with a flash can be selected using Maximum sensitivity with M.