Do what he is: my old flashes (Nikon SB 24, Canon 430 EZ and a 36-year-old Metz Flash) unleashed trigger as a slave. And the very reliable and in all situations (lightning depends on the head). Trigger is the pop-up flash of my Nikon D 5100 in 1 / 32nd of its performance. Delivery by Amazon as always fast and reliable. Thank you! Greeting M. Schmidtchen.