The Godox TT685S speedlite is designed for Sony cameras. It features two transmission ways: optical transmission and 2.4G wireless transmission.

Fully supporting TTL function, it works as master or slave unit in a wireless flash group. It also supports TTL/M/Multi/S1/S2 mode. Featuring high speed sync up to 1/8000s,front & rear curtain sync & FEC.

20-200mm auto/manual zooming, the flash coverage sets automatically to match the lens focal length and image size. The TT685S has a quide number of GN60, 22 steps of power output from 1/1-1/122 and a fast recycle time, about 0.1-2.6s.

The TT685S also powers off automatically after about 90s of idle operation or 60 minutes if set as slave. 

Also included is the Godox X2S-T wireless trigger for Sony. 

Compatible with Sony A7 series cameras including Sony A7, A7R, A7S, A7 II, A7R II, A7S II.