Speedlite Transmitter ST-E3-RT (Ver. 2)
![](https://vn.canon/media/image/2021/02/03/cc5f8a9c75a840948f18a542328bdfc3_ST-E3-RT+Top.png)
Manual Flash Output Range | 1/8192*– 1/1 * for selected speedlite models only |
High Speed Sync | Supported |
FEB | ±3 stops in 1/3- or 1/2-stop increments |
FE Lock | Supported |
FE Memory | Supported |
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 | 4 |
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 |
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