Speedlite connecting cord not compatible with E-TTL or E-TTL II; No automatic flash with EOS digital SLRs.
Off Camera Shoe Cord OC-SC3 The Off Camera Shoe Cord allows you to connect your Canon Flash on one end of the cord and the other end will be mounted to the Hot Shoe unit of your EOS camera.
Fits into the hot shoe of select Nikon DSLR cameras and helps to keep out dust and moisture from the hot shoe.
Replacement Weatherproof Cover for HLD-6 Connection for E-M5