These transceivers are excellent. They live upto their claim. After buying this set I ordered another. The ETTL functions work perfect with my Yongnuo and Canon flashes. All features are retained. They are good looking and easy to operate. If you're wondering about getting them. Do it, you won't be disappointed.

I don't know how it works on a Canon camera. I use it to remote trigger non-dedicated flashes. I can tell you it does not work TTL on Fujifilm X-T1.

IDEAL POUR DECLENCHEMENT SANS FIL

It works right out of the box, I turned it on and right away it worked. I have no idea what to use it for, but I liked it. Need to read more photo books.

I'm not using them on a Canon but on a Fujifilm XT-1, so I don't know how it does on a Canon (they don't make a model for Fujifilm X-T1). With the camera's dedicated flash (Fujifilm) it does not transmit/receive TTL. I'm using a Canon TTL cord for off camera flash, which works just fine, so I imagined that this would be OK, since it's the same thing, only wireless... Well, it's not. However, I use some old Vivitar flashes instead, which have that thyristor and they do a fine job as remote trigger...

Delivered fast, works like a charm with yn-568ex ii flash