On-camera, i-TTL II/i-TTL/TTL auto flash speedlite, Note: Not compatible with Nikon D5, DX1, DX2
Wireless multiple flash, advance wireless lighting. In this mode, you can divide the remote flash units into three groups and set the flash mode and flash output level compensation values separately for each group as well as the master flash unit
Support Front-curtain,Rear-curtain sync, FEB, FE Lock, AF assist beam, setting custom function, power saving mode,over heat protection, flash exposure compensation and memory function
Flash Mode: TTL/M/RPT/HSS/MASTER/SLAVE/S1/S2
Powerful Flash with High Guide No.6(ISO 1, 18mm). High-speed sync up to 1/8th of a second