Canon Pro1 PowerShot Pro1 Camera User Guide - Page 110

Locking the Flash Exposure Setting (FE Lock) Mode Dial You can obtain the correct exposure with flash photography regardless of the location of your subject in the composition. 1 Press the (Flash) button and set the flash to fire (p. 62). z If you are using an externally mounted flash, please refer to its manual for setting instructions. 2 Focus the AF frame or the spot metering frame on the subject on which you wish to lock the flash exposure setting and press the shutter button halfway. 3 While pressing the shutter button halfway, press the button. z The exposure setting locks (FE lock) and the icon appears on the LCD monitor (or in the viewfinder). z The flash will fire a pre-flash and lock the flash exposure to the required intensity to illuminate the subject. z Each time you press the button, the flash exposure fires a preflash and locks at the required intensity for that composition. z Using any button or lever other than the main dial cancels the FE lock. 4 Recompose the image and shoot. z The FE lock only functions with the built-in flash, an externally mounted EX series Speedlite, a Macro Ring Lite or a Macro Twin Lite. z The FE lock function is not available when [Flash Adjust] is set to [Manual]. 106