Aputure e-TTL Flash Magnum MG-68TL Speedlite for Canon EOS Camera, Replacing SB-430EX II Four second recycle time with precise brightness adjustments (8 Levels: 1/1-1/128) Guide number: 48 (at 105mm focal length, ISO 100 in meters) 3 flash modes (Master/ Slave 1/ Slave 2) Connection ports: hot shoe, PC sync port, and external power port Includes a 24 Month Manufacturer Warranty