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.

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