https://community.usa.canon.com/t5/Speedlite-Flashes/Master-amp-Slave/m-p/344239#M994 <P>The Sunpak 4000AF is an old film era flash. It is not compatible with Canon digital cameras or the Canon proprietary off camera flash system.&nbsp;</P> Fri, 04 Jun 2021 22:00:05 GMT MikeSowsun 2021-06-04T22:00:05Z https://community.usa.canon.com/t5/Speedlite-Flashes/Master-amp-Slave/m-p/344198#M993 <P class="p1">I had been using a Canon 430 EX as a slave but it’s been stolen. Is it possible to trigger a Canon 580 EX if I use it as a slave and have a Canon compatible<SPAN class="Apple-converted-space">&nbsp; </SPAN>Sunpak 4000AF in the hotshot on a Canon 6d or 5d.<SPAN class="Apple-converted-space">&nbsp;Basically I'm asking, will Canon Speedlights only respond to other Canon Speedlights?</SPAN></P> Fri, 04 Jun 2021 15:56:58 GMT https://community.usa.canon.com/t5/Speedlite-Flashes/Master-amp-Slave/m-p/344198#M993 slocumjoseph 2021-06-04T15:56:58Z https://community.usa.canon.com/t5/Speedlite-Flashes/Master-amp-Slave/m-p/344239#M994 <P>The Sunpak 4000AF is an old film era flash. It is not compatible with Canon digital cameras or the Canon proprietary off camera flash system.&nbsp;</P> Fri, 04 Jun 2021 22:00:05 GMT https://community.usa.canon.com/t5/Speedlite-Flashes/Master-amp-Slave/m-p/344239#M994 MikeSowsun 2021-06-04T22:00:05Z