User's Manual

Control Panel
Dot-matrix LCD Panel
What’s in the Box of TT685C?
Separately Sold Accessories
Attaching to a Camera
Power Management
Flash Mode— E-TTL Autoflash
FEC (Flash Exposure Compensation)
FEB (Flash Exposure Bracketing)
FEL: Flash Exposure Lock
High-Speed Sync
Second-Curtain Sync
Flash Mode—M: Manual Flash
Flash Mode—Multi/Stroboscopic Flash
Wireless Flash Shooting: Optic Transmission
Wireless Settings
Master Unit’s Flash OFF
Setting the Communication Channel
ETTL: Fully Automatic Wireless Flash Shooting
ETTL: Use the Wireless Shooting of Flash Ratio
M: Wireless Flash Shooting with Manual Flash
Wireless Flash Shooting: Ratio (2.4G) Transmission
Other Applications
Wireless Control Function
Sync Triggering