Wireless radio comes to Canon Speedlite 600EX-RT, Speedlite Transmitter ST-E3-RT
Link: The standout feature of the Speedlite 600EX-RT and Speedlite Transmitter ST-E3-RT is the ability to command and trigger remote 600EX-RTs with a wireless radio signal, thereby eliminating the misfires associated with optical signaling
Copy and paste this URL into your WordPress site to embed
Copy and paste this code into your site to embed