Mcoplus FT-35C Professional 3m E-TTL TTL Off Camera Flash Sync Shoe Cord Cable for Canon 580EX 430EX II 550EX 50D 60D 70D 450D 550D 600D Support a flash use TTL, M model on camera cable hot shoe or flash cable hotshoe. Support two flashes with TTL model on camera cale hotshoe and flash cable hotshoe. Not recommend one hotshoe flash use TTL Model another flash use Manual Model. Fits Olympus camera and flash system