XIT Dedicated & Slave Speedlite Flash for CANON T5i 700D T4I 650D T3i 600D SL1
The best solution for off camera flash technique :The XT500EX TTL system supports Canon wireless TTL systems. The XT500EX can be used jointly with Canon original flash as either Master and/or Remote (Slave). The XT500EX also supports digital (pre-flash system) and analogue (film type cameras flash and/or studio flash under both of Manual and Av. priority mode. Multi-Flash: Repeating flash for multi-exposure image in one frame. The power ratio can be set from 1/1 to 1/128.