It's a shame I didn't see this thread earlier, as I discovered this myself when I bought the Nikon equivalents. This information:
Originally Posted by baachitraka
is, as far as I can tell, simply wrong. This poster has a modified version, but in stock configuration they will not act as dumb triggers.
Originally Posted by Matthew Wagg
I have a modified version myself, the details of how to do the modification are detailed here: http://nikonrumors.com/2012/06/02/di...-trigger.aspx/
There are a few other write-ups available around the internet on the subject. Once you have done the modification, the transceiver is turned into a full time transmitter (but can also act as a receiver in the right configuration). This modification shouldn't be too difficult if you have a soldering iron to hand.