... canon series Technical DetailsHigh Quality flash E-TTL Off-Camera Shoe Cord for c anon DSLR and Flashes replace OC-E3b ... , 20D, 30D, 40D, 50D, 5D, 7D, Digital Rebel (300D), Rebel XT (350D), Rebel XTi (400D), Rebel XS (1000D) & Rebel XSi (450D ...