135iThe higher the ISO sensitivity, the less light needed to make anexposure, allowing faster shutter speeds or smaller apertures,but the more likely the image is to be affected by “noise” in theform of randomly-spaced bright pixels, fog, or lines.ISO SensitivityqxwAuto (160–6400)Auto (160–3200)Auto (160–800)The camera adjusts ISO sensitivity in response tolighting conditions. ISO sensitivity is adjusted inthe range given in brackets; choose larger rangesfor increased sensitivity when lighting is poor,smaller ranges to reduce noise.160, 200, 400, 800,1600, 3200, 6400 ISO sensitivity is fixed at the selected value.A “Auto” ISO Sensitivity OptionsWhen auto ISO sensitivity control is in effect,the display shows an ISO-AUTO icon and thecurrent ISO sensitivity.
