So far we have covered many different ways you can use your flash on-camera such as bounce and diffused flash and hopefully you have mastered those. Now we will explore numerous ways to effectively use flash off-camera. There are basically two ways to use flash off camera: ETTL and non-ETTL. You can use a Dedicated Flash Cord between your flash and camera and still have all the TTL features available or you can use your flash in a wireless capacity using either the infra red technology built into the flash or separate radio triggersThe content you are trying to access is only available to members. Sorry.