Yongnuo Speedlite flash YN510EX YN-510 EX for Canon Nikon CamerasSpecial Features:Maximum shutter sync: Supports up to 1/8000 Respectively accepts internal flashing of 580EX II, SB-900/800/700, 7D/60D/600D, C order of N"s internal flashing and ST-E2 wireless signal, achieves external TTL and manual flashingGN58 at ISO100, 105mm, supports HSS, TTL/M/multi-modeMultiple trigger mode supported: Can be triggered by the camera set-top, built-in or main-controlled flashing command, S1 and S2Supports automatic/manual zooming: Full-frame/half-frame switchable with 24-105mm zooming rangeComprehensively supports TTL functions: Supports HSS, FEC, FEB, Rear-curtain sync, FE lock, Modeling Light, Canon camera menu accessibleCompleted with 2.5mm PC synchronous interfaceSound prompting systemModeling light functionAdvanced settings on flashAutomatic setting saving Key Specifications:Circuit design: IGBT Guide no: 53 (ISO100, 105MM)Flash mode: M, multi, Sc, Sn, S1, S2Zoom range: 24, 28, 35, 50, 70, 80, 105mmVertical rotation: -7 to 90¡ãHorizontal rotation angle: 0 to 270¡ãPower supply: 4 X AA batteriesLighting time: 100 to 1, 500 times (AA alkaline cell used)Recycle time: Approximate 3sColor temperature: 5, 600KFlash time: 1/200 to 1/20000sFlash control: 8 levels of output control (1/12/-1/1, 29 levels of fine tuning)External interface: Hot shoe, PC portWireless trigger distance: 20 to 25m indoor, 10 to 15m outdoorAdditional features: High speed sync, fear curtain sync, FEC, FEB, FEV, the electronic flash head zooming, sound prompt, automatic saving setting, PC port, power saving mode, over heat protection, advanced settingDimensions: 60 X 73 X190mm Net weight: 350g Package includes : 1x Yongnuo YN510EX Flash unit 1x Protection bag1x Mini stand1x User Manual in English and Chinese