Canon may be making that radio trigger flash and DSLR with a built-in transmitter after all. Recall that I posted the details on Canon’s patent application in August 2010, which covered a radio-signal transmitter and receiver communication between DSLR and Speedlights.
Now Canon Rumors says its been told that Canon has working prototypes of flashes that are triggered via radio communication by an updated version of the ST-E2 transmitter. Presumably, any new flash from Canon that sports built-in radio TTL communication would unseat the 580 EX II as the flagship Speedlight in Canon’s lineup. [Read more...]