This product adopts flexible LCD menu control, supporting mixed use of the A/B/C three groups of flashes using i-TTL, manual, or super sync flash mode, can be adjusted the exposure compensation or flash output of each group.
- In addition, it supports setting different focal length(zoom)of the three groups of flash
- Support USB firmware upgrade. LCD screen display, multi-buttons quick operation.
- The firmware can be upgraded through the USB interface.
- The focal length(zoom)of the A/B/C three groups of flash can be adjusted separately