Canon EOS Rebel T1i EOS REBEL T1i/EOS 500D Instruction Manual - Page 27

Turning on the Power When you turn on the power switch and the date/time setting screen appears, see page 29 to set the date/time. : The camera turns on. : The camera is turned off and does not operate. Set to this position when not using the camera. About the Automatic Self-Cleaning Sensor Whenever you set the power switch to or , the sensor cleaning will be executed automatically. During the sensor cleaning, the LCD monitor will display . Even during the sensor cleaning, you can still shoot by pressing the shutter button halfway (p.37) to stop the sensor cleaning and take a picture. If you turn / the power switch at a short interval, the icon might not be displayed. This is normal and not a problem. About Auto Power Off To save battery power, the camera turns off automatically after about 30 seconds of non-operation. To turn on the camera again, just press the shutter button halfway (p.37). You can change the auto power-off time with the menu's [5 Auto power off] setting (p.131). If you set the power switch to while an image is being recorded to the card, [Recording ...] will be displayed and the power will turn off after the card finishes recording the image. 27