School tip Flash customization
Use your camera’s display to tweak Speedlite set ups
ADVANCED CANON Speedlites can also be customized to how you like to work – from simple things such as changing the distance indicator display from meters to feet, to disabling functions such as the AF-assist beam firing. You can also enable previously locked features, such as activating an audible beep when the flash has recycled after firing (which is useful when you’re using a number of remote flashguns).