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| p.1 #3 · Phottix odin flash trigger compatible with 550ex |
Got a reply. I had asked about 50D, 5D, and 1D Mark IV, along with 550EX, 580EX II, and Vivitar 285HV (in manual mode) flashes. Apparently, they do not test the "off-brand" flashes:
The Phottix Odin for Canon is compatible with all Canon cameras and flashes you mentioned.
It was not tested with the Vivitar flashes.