The 50D onboard flash will not trigger any remote flashes. You can trigger Canon remote flashes with the 580EX or 550EX series of flashes, or by the ST-E2 trigger.
The 50D onboard flash will not trigger any remote flashes. You can trigger Canon remote flashes with the 580EX or 550EX series of flashes, or by the ST-E2 trigger.
We're a Canon/Profoto family: five cameras, sixteen lenses, fifteen Profoto lights, too many modifiers.