William Guth
I bought this flash after reading positive reviews here and elsewhere. Im not a working professional photographer yet but working towards it, so purchasing 3rd party is economical for me, but never again. The flash worked out of the box for about 10 minutes before it gave up. I was impressed by the build quality, its ability to communicate with my camera, but was burdened by its inability to function after only firing 3 or 4 times. The red Test light, or "charging light" blinked continuously, and never reset to firing capacity. I tried different batteries, new batteries, other batteries, troubleshooting from the manual, internet forums; and nothing worked. I had to drive to a nearby camera shop to rent a flash for event. It was a Nikon brand flash. Not an equivalent to this model, and too expensive for me to consider as an alternative right now, but on the horizon for me, I hope. Aside from receiving a bunk flash from the seller, the package arrived a day late. I dont know if this is connected to the defect or simply coincidence, but the experience of receiving and working with JUNK was infuriating to say the least. I have 3rd party Sigma and Tamron lenses that I swear by, but I cannot recommend the Yongnuo brand for flash.