Auto Iso

Some articles on iso, auto iso:

List Of Digital Camera Modes - Manual-enabled Modes
... There are three exposure parameters – aperture, time (shutter speed), and sensitivity (ISO), and in different modes these are each set automatically or manually this gives 23 ... Most often, ISO is considered separately, being either set manually or set to Auto ISO, and then only aperture and shutter speed need be determined ... (given a manually or automatically selected ISO) ...