Canon EOS Rebel T3i 18-55mm IS II Lens Kit EOS REBEL T3i / EOS 600D Instructio - Page 80

Z: Changing the ISO SpeedN ISO [AUTO] If the ISO speed is set to [AUTO], the actual ISO speed to be set will be displayed when you press the shutter button halfway. As indicated below, the ISO speed will be set automatically to suit the shooting mode. Shooting Mode A/7/C/3/4/5/6 d/s/f/a*1/8 2 With flash ISO Speed Setting Automatically set within ISO 100 - 3200 Automatically set within ISO 100 - 6400*2 Fixed at ISO 100 Fixed at ISO 400*3*4 *1: Fixed at ISO 400 for bulb exposures. *2: Depends on the maximum ISO speed limit set. *3: If fill flash results in overexposure, ISO 100 or a higher ISO speed will be set. *4: If bounce flash is used with an external Speedlite in a Basic Zone (except ) mode, or mode, ISO 400 - 1600 (or up to the maximum limit) will be set automatically. When [AUTO] is set, the ISO speed is indicated in whole-stop increments. However, the ISO speed is actually set in finer increments. Therefore, in the image's shooting information (p.226), you may find an ISO speed like 125 or 640 displayed as the ISO speed. In the mode, the ISO speed shown in the table is actually used even if ISO 100 is not displayed. 3 Setting the Maximum ISO Speed for ISO AutoN For ISO Auto, you can set the maximum ISO speed limit within ISO 400 - 6400. Under the [y] tab, select [ISO Auto], then press . Select the ISO speed, then press . 80