Manual Flash Output Range 

1/128– 1/1

High Speed Sync  
Supported 
FEB 
±3 stops in 1/3- or 1/2-stop increments  
FE Lock 
Supported 
FE Memory 
-
Flash Modes (Exposure Control Modes) 
E-TTL II/E-TTL Autoflash, Manual, Stroboscopic, Auto external flash metering 
Modeling Flash 
Supported 
Flash Exposure Compensation 
±3 stops in 1/3- or 1/2-stop increments 
Transmitter 
Yes 
Transmission Type 
Radio 
Wireless Transmisson Range (m) (Approx) 
30 
Receiver Unit Control  
Up to 5 groups & total of 15 units 
Maximum Flash Count (Approx.) 
10 continuous hours 
Custom Functions 
8
Personal Functions 
3
Standard Power Supply 
2 size AA/LR6 alkaline or Ni-MH batteries 
Dimensions (mm) (Approx.) 
67.4 x 61.5 x 77.4  
Weight (g) 
110