K&F Concept KF-882N I-TTL Speedlite Flash with 1/8000s HSS Wireless Master/Slave Auto-Focus Function for Nikon DSLR Cameras The I-TTL Speedlite with the Guide No.GN58 (ISO 100,180mm), Suitable for: Nikon D3000,D5000,D3100,D5100,D7000,D800,D40,D40X,D50,D60,D70,D70S,D80,D90,D80S,D200,D300,D300S,D700,D3S, D600, etc. With 1/8000s high-speed synchronization function,helps capture the wonderful moments. Support wireless Master/Slave function and S1/S2 light flashing mode,no external triggers are required. Large LCD screen with backlight mode, easy to master information though in dark. 2.9 seconds high-speed recycle time, won't let you miss every wonderful moment.