Enstein 640 at 1/3200 HSS with 5D
Very nice. Could you give a bit more info about how you achieved this?
At this moment you can do this with the Pocketwizard Flex system (TT1/TT5) and almost any studio light with a slow flash duration time.
With the Einstein it work only at full power because is in that power that is have the slow flash duration time.
Still shooting 35/120/220mm film