Specifications

Guide number:  GN60（ISO100，200mm）
Wireless Flash: Optical pulse transmission Slave
Flash mode: ETTL, M, MULTI
Zoom range: 20～200mm (When using wide angle dispersion plate is 14 mm)
High speed sync: 1/8000s
Slave flash:  Optical pulse SLAVE Canon, light trigger S1/S2
Shutter synchronization: High Speed Sync, Front-curtain Sync and Rear Sync
Flash exposure compensation: Support (with an increment of 1/3 gear in +/-3 gear)
Bracket exposure: Support
Flash exposure lock: Support
Modeling flash: Support
AF assist-focus: Support
Manual flash:  1/128~1/1 (with an increment of 1/3 gear)
Frequency flash: 1～199Hz
Recycle time: Quick flash less than 2s, ordinary flash less than 3s
Optical transmission distance: About 20 m
Optical transmission channels: 4
Flash groups: Support for A/B/C groups
Power supply: 4×AAsize batteries (Alkaline or Ni-MH is usable)
External interface: Hot-shoe, PC synchronous interface, external charging interface
Battery life: Flash 100～700 times
Measurement: 79.7（L）×142.9（W）×125.4（H）mm
Net weight: About 420g (not including batteries)