Turn the power switchON, set the camera'sexposure mode to S.The battery has been recharged. Note: The G40 won't fire at shutter speedsfaster than 1/100-sec.Select 1/100-sec. orslower shutter speedusing the shift dial.When shooting in the Shutter-Preferred Auto mode:The G40 is a dedicated flash for the IS Series (GN 40, ISO 10Om/GN 132,ISO 100•ft).Refer to these pages when the G40 is to be used in the Shutter-Preferred Auto mode.Electronic Flash G40 (Optional)65Make sure