Mcoplus Meike MK-580 MK580 E-TTL Universal Flash Light Speedlite For Canon EOS Canon 5D Mark III 6D 7D 50D 60D 70D 550D 600D 650D 700D 1100D 580EX II Replacement of Canon 580EX II Compatible with E-TTL II, E-TTL and TTL autoflash Master and slaver function