As stated in the description of the adapter does not work with all the flashes. On my Canon 420 EX everything was fine, the Metz 45 CT 5 was not triggered. Whether that works for their own flash must probably just try it. Well, I found the release button for the "tail hook" which fixes the adapter to the camera. Return shipping was hassle. For my two flashes work the adapter Pixel TF-325th