45Additional Shooting OptionsUsing ISO SensitivityISO Sensitivity is a measure of how the camera’s sensor reacts to light. Settinga high ISO will let you take pictures with smaller apertures under low lightingconditions or make it easier to freeze action with faster shutter speeds. How-ever, the higher the ISO, the more likely “noise” in the form of randomly-spaced, brightly-colored pixels may appear.ISO Sensitivity can be selected in M and E modes.Setting ISO SensitivityISO Sensitivity Setting When Using FlashA setting of 400 is intended for use with natural lighting. Select Auto, 50, 100, or 200 when usingthe flash (P.28).Rotate mode dial to e.SENSITIVITY menu is displayed.Highlight option and press d.If ISO Sensitivity is set to an optionother than Auto, rotate mode dial toM or E.The current setting is shown in the shootingdisplay.Setting ISO Sensitivity from the Shooting MenuISO Sensitivity can also be set using the Sensitivity option in the Shooting menu (P.78).SENSITIVITYOK50100200400Auto50100200400SENSITIVITYOKAutoF2.7F2.71/601/60 120120F2.71/60 120For more information, see “Options for ISO Sensitivity” (P.149).