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CANON U.S.A.,Inc. MAKES NO GUARANTEES OF ANY KIND WITH REGARD TO ANY PROGRAMS, FILES, DRIVERS OR ANY OTHER MATERIALS CONTAINED ON OR DOWNLOADED FROM THIS, OR ANY OTHER, CANON SOFTWARE SITE. ALL SUCH PROGRAMS, FILES, DRIVERS AND OTHER MATERIALS ARE SUPPLIED "AS IS." CANON DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
CANON U.S.A.,Inc. SHALL NOT BE HELD LIABLE FOR ERRORS CONTAINED HEREIN, OR FOR LOST PROFITS, LOST OPPORTUNITIES, CONSEQUENTIAL OR INCIDENTAL DAMAGES INCURRED AS A RESULT OF ACTING ON INFORMATION, OR THE OPERATION OF ANY SOFTWARE, INCLUDED IN THIS SOFTWARE SITE.
I have read and understand the information above, and wish to download the designated software.
CANON U.S.A.,Inc. MAKES NO GUARANTEES OF ANY KIND WITH REGARD TO ANY PROGRAMS, FILES, DRIVERS OR ANY OTHER MATERIALS CONTAINED ON OR DOWNLOADED FROM THIS, OR ANY OTHER, CANON SOFTWARE SITE. ALL SUCH PROGRAMS, FILES, DRIVERS AND OTHER MATERIALS ARE SUPPLIED "AS IS." CANON DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
CANON U.S.A.,Inc. SHALL NOT BE HELD LIABLE FOR ERRORS CONTAINED HEREIN, OR FOR LOST PROFITS, LOST OPPORTUNITIES, CONSEQUENTIAL OR INCIDENTAL DAMAGES INCURRED AS A RESULT OF ACTING ON INFORMATION, OR THE OPERATION OF ANY SOFTWARE, INCLUDED IN THIS SOFTWARE SITE.
I have read and understand the information above, and wish to download the designated software.
Speedlite Transmitter ST-E3-RT (Ver. 2)
Contact Support
1-800-OK-CANON (1-800-652-2666)
Monday-Friday 9:00 am to 9:00 pm ET, Saturday: 9:00 am to 7:00 pm ET, excluding holidays
Speedlite Transmitter ST-E3-RT (Ver. 2)
Flash
Type
Radio transmissions wireless Speedlite transmitter
Compatible Cameras
Type A EOS cameras (E-TTL II/E-TTL autoflash)
Sync Speed
High-Speed Sync provided
Flash Exposure Confirmation
Flash exposure confirmation lamp lights in green*
* If it does not light, shooting is not performed with the standard exposure
* If it does not light, shooting is not performed with the standard exposure
FE Memory
Yes
Exposure Control
E-TTL II / E-TTL autoflash
Yes
Manual
1/1 - 1/8192*¹ ( First curtain only when the second curtain is set.)
*¹ Less than 1/128 power possible only with Speedlite EL-1, used as receiver unit(s), as of February, 2021.
*¹ Less than 1/128 power possible only with Speedlite EL-1, used as receiver unit(s), as of February, 2021.
Multiple
1/4-1/8192*¹
1-500Hz
*¹ Less than 1/128 power possible only with Speedlite EL-1, used as receiver unit(s), as of February, 2021.
1-500Hz
*¹ Less than 1/128 power possible only with Speedlite EL-1, used as receiver unit(s), as of February, 2021.
Wireless Functions
Transmission System
Radio Transmission
Transmission Range
Approx. 98.4 ft. (30m)
Flash Ratio Control
1:8 - 1:1 - 8:1, power 1/2-stop increments
Flash Coverage
Transmission Angle: 360° all around
Second-curtain Sync
Yes*²
*² Cameras that support wireless second-curtain sync as of February 2021:
• EOS-1D X Mark III*³
• EOS R5*³
• EOS R6*³
• EOS M50 Mark II
*³: Camera body must have firmware installed that supports Speedlite EL-1.
*² Cameras that support wireless second-curtain sync as of February 2021:
• EOS-1D X Mark III*³
• EOS R5*³
• EOS R6*³
• EOS M50 Mark II
*³: Camera body must have firmware installed that supports Speedlite EL-1.
Receiver Operation Confirmation:
Green Light
Lit: Radio Transmissions Okay
Red Light
Lit: Not Connected
Blinking: Transmission Error/ Too many units (Sender units + sender units = more than 15 units)
Orange Light
Lit: Sub-sender transmission
Blinking: Receiving remote release shooting, linked shooting signal
Lit: Radio Transmissions Okay
Red Light
Lit: Not Connected
Blinking: Transmission Error/ Too many units (Sender units + sender units = more than 15 units)
Orange Light
Lit: Sub-sender transmission
Blinking: Receiving remote release shooting, linked shooting signal
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.
LCD Panel
LCD
172 x 104 dot display
General
Power Source
AA/LRG Alkaline Batteries x2(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 23°C/73°F).
Battery Life: Approx. 10 hours continuously when using AA/LR6 alkaline batteries (At a room temperature 23°C/73°F).
SE Mode
Power off after 5 min. of idle operation
Dimensions
2.7 (W) x 2.4 (H) x 3.0 (D) in. / 67.4 (W) x 61.5 (H) x 77.4 (D) mm
Weight
3.9 oz. / 110g (excluding battery)
† Prices and specifications subject to change without notice. Actual prices are determined by individual dealers and may vary.
Speedlite Transmitter ST-E3-RT (Ver. 2)
- Speedlite Transmitter ST-E3-RT (Ver. 2)
- Soft Case
- Warranty Card (USA/CA)