
Canon Speedlite Transmitter ST-E3-RT (v3.0)
Fire compatible Speedlite flashguns over distances of up to 30m. Radio-frequency control provides reliable operation even when direct line of sight is not possible. The ST-E3-RT (Ver.3) has the same functionality as the ST-E3-RT (Ver.2) but without the Remote Release Terminal, and the torque required to turn the Select dial has been reduced, making it easier to use. The Select dial now has the same structure as that of the Speedlite 600EX II-RT, Macro Twin Lite MT-26EX-RT and Macro Ring Lite MR-14EX II.
- Radio frequency remote flash trigger
- Fire selected Speedlites from 30m away
- Wireless second curtain sync for the Speedlite EL-1 and Speedlite EL-5
- Weather sealed against dust and moisture
- Part of the E-TTL II flash system
- Controls up to 15 flashguns
- Remote camera triggering
NB - The ST-E3-RT (Ver.3) is not compatible with the Canon Speedlite Release Cable SR-N3. Remote release from receiver and receiver function of linked shooting are not available when using ST-E3-RT (Ver.3) with cameras equipped with an N3 remote control terminal and compatible with E-TTL II/E-TTL autoflash, released in or before 2011.
Reliable off-camera flash control
Control compatible Canon Speedlite flashguns over distances up to 30m. 2.4GHz radio frequency triggering operates reliably, even when shooting outdoors and around corners – direct line of sight not required.
Multiple flash photography
Create intricate multi-flash lighting set ups, triggering up to 15 Speedlite flashes with a single camera-mounted Speedlite Transmitter SPEEDLITE TRANSMITTER ST-E3-RT (Ver.3). E-TTL II flash metering makes exposure control easy.
Remote camera control
Trigger an EOS camera fitted with a Speedlite Transmitter from a second unit or from a compatible Speedlite flashgun, such as the Speedlite 600EX II-RT. Up to 15 cameras can be triggered at once, for synchronised shooting.
Easy to use design
The Speedlite Transmitter SPEEDLITE TRANSMITTER ST-E3-RT (Ver.3) is sealed against dust and moisture to the same degree as professional EOS cameras and L-series lenses. It features an easy to read back-lit LCD control screen and is powered by two AA/LR6 batteries.
Wireless second curtain sync
The SPEEDLITE TRANSMITTER ST-E3-RT (Ver.3) supports wireless second curtain sync for the EL-1/EL-5 when fired remotely, plus down to 1/8192 nuance lighting and flash exposure (FE) memory.
Flash Modes | |
---|---|
Auto Exposure Control | E-TTL II / E-TTL |
High Speed Sync (FP) | Yes |
Manual / Output Settings | Yes - 1/1- 1/128 (minimum 1/8192 1 2) |
Manual Steps | 1/3 step |
Strobe / Output Settings | Yes - 1/4-1/128 (minimum 1/8192 3 4) |
Stroboscopic Frequency | 1-500Hz |
Flash-Related Function | |
FE Lock | Yes |
FE Memory | Yes 5 6 |
Flash Exposure Compensation | Yes |
Flash Exposure Bracketing | Yes |
Second-Curtain Flash Sync | Yes 7 8 |
Modelling Flash | Yes |
Wireless Flash | |
Transmitter | Yes |
Transmission Type | Radio |
Transmitter Range | Indoors: 30m Outdoors: 30m |
Receiver | No |
Number of Groups | 5 - A,B,C,D or E |
Number of Channels | 15 |
Remote Shutter Release | Yes 9 |
AF Assist | |
AF-Assist Beam | No |
Number of AF Points Supported | - |
AF-Assist Beam Type | - |
Power Source | |
Battery | 2 x AA batteries |
Minimum Recycling Time | N/A |
External Power Supply | No |
Construction | |
Dust and Water Resistance | Yes |
Mounting Foot Material | Metal |
Miscellaneous | |
Custom Function | 8 (4 personal functions) |
Flash Settings from Camera Menus | Yes |
External Flash Exposure Sensor | No |
Remote Release Terminal | No |
PC Terminal | No |
Accessories (Included) | Soft Case |
Accessories (Optional) | Off-Camera Shoe Cord OC-E3 |
Compatible Speedlites | EL-1, EL-5, 600EX II-RT, 600EX-RT, 430EX III-RT |
Physical Specifications | |
Dimensions (W x H x D) | 67.4 x 61.5 x 77.4 |
Weight | 106g |
Notes
- Compatible cameras may need the latest firmware update.
- Minimum flash output of 1/8192 possible with Speedlite EL-1 only, or 1/1024 with EL-5 (1/128 with high-speed sync). Does not show in the camera's UI settings on cameras launched before 2020.
- Compatible cameras may need the latest firmware update.
- Minimum flash output of 1/8192 possible with Speedlite EL-1 only, or 1/1024 with EL-5 (1/128 with high-speed sync). Does not show in the camera's UI settings on cameras launched before 2020.
- Compatible cameras may need the latest firmware update.
- Flash output amount may slightly differ between that of E-TTL autoflash and manual flash
- Compatible cameras may need the latest firmware update.
- With compatible cameras launched from 2020, e.g. EOS-1D X Mark III, EOS R5/R6 and later, but excluding EOS 850D.
- Remote release from receiver and receiver function of linked shooting are not available when using Speedlite Transmitter ST-E3-RT (Ver.3) with cameras equipped with an N3 remote control terminal and compatible with E-TTL II/E-TTL autoflash, released in or before 2011.
The EU's General Product Safety Regulation (GPSR) promotes consumer safety and confidence by ensuring compliance with product safety standards and improving recall effectiveness. To meet these requirements, we provide the Manufacturer's information below along with the EU Responsible Person's details, where applicable. As always if you have an issue with any product we firstly recommend that you make direct contact with the shop and we will endeavour to assist you.
Responsible Entity in the EU
Canon Europa N.V.
Bovenkerkerweg 59,
1185 XB Amstelveen,
The Netherlands
canon-europe.com
Ph +31 20 545 8545
Manufacturer
For cameras (EOS, IXUS, PowerShot, Cinema EOS), lenses, and Canon accessories that can be attached to cameras or lenses, camcorders (LEGRIA), printers (imagePROGRAF, MAXIFY, PIXMA, SELPHY) and consumables, and scanners (CanoScan).
Canon Inc.
30-2, Shimomaruko 3-chome,
Ohta-ku,
Tokyo 146-8501,
Japan
canon-europe.com/support
Manufacturer
For calculators, Zoemini products and Canon consumables, backpack (CB-BP13), and cases (DCC-1830, DCC-1950, DCC-2400).
Canon Electronic Business Machines (H.K.) Co., Ltd
17/F., Tower 1,
Ever Gain Plaza,
82-100 Container Port Road,
Kwai Chung,
Hong Kong
canon-europe.com/support
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