Speedlite 600EX-RT & Speedlite Transmitter ST-E3-RT
   
Benefits
Radio-triggered systems allow users to overcome many of the limitations presented
by wireless automatic flash. The benefits of the radio system include (but are not
limited to):
The Ability to Send Signals Over a 360° Range
Photographers can now confidently position off-camera Speedlites way off to the sides
 
Photographers can now confidently position off-camera flash units way off to the side of the scene (to avoid capturing it within the picture).
  • With the use of the radio system, this positioning will no longer prevent the flash unit from receiving the signal sent by the on-camera trigger.
 
Add dramatic lighting to the doorway
behind a model by placing a flash unit
just outside the doorframe
The Signal Goes Through or Around Most Obstacles
  • The signal even goes through most walls!
    • Add dramatic lighting to the doorway behind a model by placing a flash unit just outside the doorframe.
  • This feature makes it MUCH easier for photographers to hide the flash units within a scene, ensuring the desired lighting with full confidence that the slave flash unit itself will not be part of the picture.
 
Now you can trigger flash units
up to 98 feet away
The Signal has a Greater Effective Range of Distance
  • Off-camera flash units no longer have to be within 20-30 feet of the on-camera trigger.
  • Now you can trigger flash units up to 100 feet away!
    • Gives users greater artistic freedom and control over the scene.
Wireless Triggering is no Longer Affected by Ambient Light
Gives users far more consistency when working in brightly lit areas such as in
direct sunlight.
  • Until now, photographers have had to shade off-camera flashes from direct
    sunlight in order to be sure they receive the signal — with radio-based Wireless
    E-TTL, the slave units will receive the signal despite bright ambient lighting.
 
 

What's in Canon Speedlites Click here to see more information about Canon basic features, functions, shooting modes and accessories.

Some images and effects simulated.