Yongnuo flash YN568ex TTL Flash Speedlite Flash trigger for Nikon camera Nikon flash + Two Free OOPSTEK Cleaning cloth for camera lenses nikon lenses Supports Hight-Speed Sync up to 1/8000 second GN58@ ISO100, 105mm TTL FLASH Comprehensively Support TTL Functions and Sound Prompting System Multiple Trigger Mode Supported: The 568EX can be triggered by hot-shoe, flash command slave mode, optical S1, and S2 (pre-flash- canceled mode. The YN568EX supports HSS, FEC, FEB, Rear-curtain sync, FE lock, Modeling Light, Canon camera menu accessible