Powerful Guide Number of 78 (feet, @ ISO 100), full E-TTL control and E-TTL features including FEL, Hi-speed sync, and FEB. Full E-TTL automatic flash control with compatible EOS bodies, including EOS-1D, D60, and D30 digital SLRs. Incandescent focusing lamps, and two different types of 1-second modeling flash allow easy focusing and previewing of lighting effects.
|Mount Type||Controller mounts on Hot Shoe, Flash mounts on lens|
|Guide Number||72' (22 m) at ISO 100 (with both heads firing at full power)|
|Maximum Recycle Time||4 seconds|
|Cordless Ttl Control||no|
|Power Source||(4) four AA batteries|