I bought the unit subsequently to my EOS-M and thought to myself, as it often was for Lieferumpfang he Währe the perfect complement. But I am disappointed! Poor performance LZ9. Cheap plastic processing. No manual zero and Operations - Everything comes back to the camera - only on-off switch. For an additional patch flash I had expected from Canon bit more! Creative lighting effects are not there. Well, it is small, light and flashes up. For three star.