Godox Thinklite TT685S TTL Camera Flash Speedlite High Speed Sync 1/8000s GN60 Light Compatible for Sony DSLR Cameras + CONXTRUE USB LED Godox Thinklite TT685S Speedlite Fully Support High Speed Sync (Max.1/8000S), front and rear curtain sync, FEC, Multi flash, Manual flash, TTL/M/Multi/S1/S2 modes, 20-200mm auto/manual zooming etc. GN60, 22 steps of power output(1/1~1-128); Approx.0.1-2.6s recycle time, 230 full power flashes(using 2500mA Ni-MH batteries). With C.fn cutom function settings. Optical transmission with even illuminatin and stable output. 2.4G wireless trnasmission with all-in-one functions and 100 meters further transimission. With dot-matrix LCD panel to offer clear and easy operation. Use 4 function buttons to change various settings according to different situations. Godox Thinklite TT685S Speedlite is Compatible with Sony Cameras. As a mster unit TT685S Speedlite can control Sony cameras flashes e.g. HVL-F60M, HVL-F43M and HVL-F32M via wireless. As a slave unit, TT685S Speedlite can be controlled by wireless signals of Sony camera flashes e.g. HVL-F60M, HVL-F43M and HVL-F32M. \(^o^)/Kindly Note that Focus Assist won't work for Sony mirrorless cameras. Whether the Focus assist works dependes on the camera actually. For mirrorless cameras such as ILCE6000L A7RIIFocus Assist Beam will not work even with Sony Original Flash.