https://community.usa.canon.com/t5/Speedlite-Flashes/Does-the-7D-integrate-wireless-with-the-newest-external-flashes/m-p/9203#M1238 <P>The 7D can act as a master to control the new 600EX-RT <U>optically</U> just like it can with the 580EX and 430EX Speedlites.&nbsp; The 7D nor any other EOS body at this time can act as a radio controlled master without the use of ST-E3-RT transmitter.</P> Sat, 29 Dec 2012 19:21:05 GMT 7D5D 2012-12-29T19:21:05Z https://community.usa.canon.com/t5/Speedlite-Flashes/Does-the-7D-integrate-wireless-with-the-newest-external-flashes/m-p/9187#M1237 Sat, 29 Dec 2012 16:29:49 GMT https://community.usa.canon.com/t5/Speedlite-Flashes/Does-the-7D-integrate-wireless-with-the-newest-external-flashes/m-p/9187#M1237 haybale 2012-12-29T16:29:49Z https://community.usa.canon.com/t5/Speedlite-Flashes/Does-the-7D-integrate-wireless-with-the-newest-external-flashes/m-p/9203#M1238 <P>The 7D can act as a master to control the new 600EX-RT <U>optically</U> just like it can with the 580EX and 430EX Speedlites.&nbsp; The 7D nor any other EOS body at this time can act as a radio controlled master without the use of ST-E3-RT transmitter.</P> Sat, 29 Dec 2012 19:21:05 GMT https://community.usa.canon.com/t5/Speedlite-Flashes/Does-the-7D-integrate-wireless-with-the-newest-external-flashes/m-p/9203#M1238 7D5D 2012-12-29T19:21:05Z