https://community.usa.canon.com/t5/Speedlite-Flashes/ST-E10-Speedlite-Transmitter-Third-Party-Strobe-Control/m-p/406785#M3902 <P>The ST-E10 is designed exclusively to communicate with Canon Speedlites using RF (radio). The protocol is proprietary and I don't believe any third party flash units, studio strobes or otherwise, are able to connect with it.</P> Mon, 20 Feb 2023 18:48:48 GMT JoeySnaps 2023-02-20T18:48:48Z https://community.usa.canon.com/t5/Speedlite-Flashes/ST-E10-Speedlite-Transmitter-Third-Party-Strobe-Control/m-p/401488#M3823 <P>- For R6 Mark II -<BR />&nbsp;The ST-E10 Speedlite Transmitter Controls the EL-5 Speedlite. Can the ST-E10 also Control Strobes, such as the Westcott FJ400?</P> Tue, 21 Feb 2023 15:55:55 GMT https://community.usa.canon.com/t5/Speedlite-Flashes/ST-E10-Speedlite-Transmitter-Third-Party-Strobe-Control/m-p/401488#M3823 JeroneKingsby 2023-02-21T15:55:55Z https://community.usa.canon.com/t5/Speedlite-Flashes/ST-E10-Speedlite-Transmitter-Third-Party-Strobe-Control/m-p/406785#M3902 <P>The ST-E10 is designed exclusively to communicate with Canon Speedlites using RF (radio). The protocol is proprietary and I don't believe any third party flash units, studio strobes or otherwise, are able to connect with it.</P> Mon, 20 Feb 2023 18:48:48 GMT https://community.usa.canon.com/t5/Speedlite-Flashes/ST-E10-Speedlite-Transmitter-Third-Party-Strobe-Control/m-p/406785#M3902 JoeySnaps 2023-02-20T18:48:48Z