I sent Canon's US support website the following question: <QUESTION> Is it true that, when used as a master in a wireless multi-flash system, that if the 550EX is mounted on an EOS 1V or EOS 3 it can be set either to fire or not to fire, but on an Elan 7/7E it will always fire regardless of the setting on the speedlite? Meaning that on an Elan 7, the 550EX can't serve the same function as the ST-E2, but on higher SLR models it can.
Or is it true that the 550EX functions on the Elan 7 exactly the same way that it does on the EOS 3? </QUESTION> I received from them the following reply: <REPLY> Dear Kenneth Sarno, Thank you for your inquiry. The 550EX will work the same on the Elan 7e as it will with the EOS 1v. When the master flash is turned off the main flash will not fire, but the pre-flash will still fire to trigger the other flashes. Thank you for your interest in Canon. We look forward to assisting you in the future. Sincerely, Richard Product Support Representative </REPLY> I suppose Richard the Canon Product Support Representative could be wrong, but I rather doubt it. I just want to put this rumor to rest: If the Sigma EF 500 or any other wireless master fires a main flash when it shouldn't, it isn't because of anything being done by the Elan 7. --Ken S. * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
