The Canon ST-E3-RT Speedlite Transmitter can help you take full advantage of all the features on Canon's Speedlite 600EX-RT and 430EX III-RT flashes. The ST-E3-RT makes complex lighting setups simple by facilitating radio-controlled, two-way wireless transmission up to 98.4' away, among up to five groups or fifteen individual Speedlites. It has controls similar to the Speedlite 600EX-RT, including multiple flash metering options, and a variety of flash modes. Compact design with highly reliable construction combined with a clearly laid-out information panel and buttons with back lighting make this an indispensible tool for advanced professional flash photography. The ST-E3-RT represents the next generation in wireless flash systems.
Note: Because it does not have an optical transmission function, the Speedlite Transmitter ST-E3-RT is not compatible with earlier Speedlite models such as 580EX II.
- Newly-designed wireless system uses 2-way radio wave communication for enhanced communication among master and slave units. Achieves a transmission distance of up to 98.4' (30 m), all at a 360 degree angle.
- Up to 5 groups, or 15 individual flashes can be controlled via 1 transmitter.
- Supports E-TTL II flash, manual flash, stroboscopic and auto external flash metering.
- Dot matrix LCD panel displays all pertinent information simultaneously and backlit control panel means easy operation.
- 8 types of custom functions, 3 types of personal functions.
- Improved hot shoe contacts for more reliable information transmission and operation.
- Slave operation confirmation:
Green Light--Lit: Radio Transmissions Okay
Red Light--Lit: Not Connected
Blinking: Transmission Error/ Too many units
Orange Light--Lit: Sub-master transmission
Blinking: Receiving remote release shooting, linked shooting signal
- Not compatible with earlier Speedlite models such as 580EX II
- MPN - STE3RT
- GTIN - 13803142488
| Name | Value |
|---|---|
| Brand | Canon |
| Type | Radio transmissions wireless Speedlite transmitter |
| Flash Ratio Control | Ratio control: 1:8 - 1:1 - 8:1, power 1/2-stop increments |
| Transmission Range | Approx. 98.4 ft. (30m) |
| Battery Type | 2x AA/LRG Alkaline Batteries (Ni-MH and Lithium batteries can also be used) Battery Life: Approx. 10 hours continuously when using AA/LR6 alkaline batteries (At a room temperature of 73F/+23C). |
| Dimensions | 67.4 x 61.5 x 77.4 mm |
| Weight | 110 g excluding battery |
| Coverage | Flash coverage: Transmission Angle: 360 all around |
| Receiver Unit SE Mode Cancellation | The test flash button can be pressed to test if the receiver units fire or cancel the auto power off status. |
| AF Assist Beam | N/A |
| Flash Exposure Confirmation | Flash exposure confirmation lamp lights in green * If it does not light, shooting is not performed with the standard exposure |
| Sync Speed | High-Speed Sync provided (EOS-1D X and EOS 5D Mark III only) |
| Compatibility | Type A EOS cameras (E-TTL II/E-TTL autoflash) |
Canon ST-E3-RT Remote Flash Control Transmitter
- Canon ST-E3-RT Remote Flash Control Transmitter x 1
- Soft Case x 1
Read Our Helpful Buying Guides
Canon ST-E3-RT Remote Flash Control Transmitter
- Canon ST-E3-RT Remote Flash Control Transmitter x 1
- Soft Case x 1
Read Our Helpful Buying Guides