• E-TTL flash exposure control balances exposure between flash and ambient light
 
• FE Lock can be used with capable cameras
 
• TTL Autoflash
 
• 90-Second auto shut off feature 
 

Type Shoe Mount
 
Guide No. 72' (22 m)
 
Angle of Coverage 75° (28mm lens in 35mm format)
 
Auto Distance Range 2.3-51.5' (0.7 to 15.7 m)
 
Auto f/Stops None (full TTL at all apertures)
 
Vari-Power None
 
TTL Dedication Yes (E-TTL on newer Canon cameras)
 
Bounce Head No
 
Swivel Head No
 
Zoom Head No
 
Off Camera Terminal No
 
Recycle Time 4.5 Seconds (based on fresh batteries & full power)
 
Power Source Four 1.5-volt "AA" alkaline batteries
 
Dimensions 2.6 x 3.6 x 2.4 (66 x 91 x 61mm) WxHxD
 
Weight 0.35 lb (159 g)