Our Smart printer technology monitors your ink and toners usage,
and automatically sends you more when your supply runs low. Free
to enroll, no commitments, cancel anytime in you account.
8 types of custom functions, 3 types of personal functions.
Improved hot shoe contacts for more reliable information transmission and operation_ compact design is approx. 2.65 (w) x 2.42 (H) x 3.05 (D) in.
Dot matrix LCD panel displays all pertinent information simultaneously and backlit control panel means easy operation.
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.
In the box
Returns Policy
The Canon store will accept, for return of exchange, defective or unopened merchandise purchased at the Canon Online Store within 30 days of the ship date.
For sophisticated wireless flash setups, there's nothing like the new Speedlite Transmitter ST-E3-RT*. Facilitating radio controlled, two-way wireless transmission up to 98.4 feet, among up to five groups or fifteen individual Speedlites, the ST-E3-RT represents the next generation in wireless flash systems. With operational controls similar to the new Speedlite 600EX-RT, including diverse flash metering options, and a number of flash modes, the Speedlite Transmitter ST-E3-RT makes complex lighting setups simple. With a compact design and highly reliable construction, combined with a clearly laid-out information panel and buttons with back lighting and more, the Speedlite Transmitter ST-E3-RT is an indispensible tool for advanced, professional flash photography.
*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.
Product Disclaimer
Prices and specifications subject to change without notice. Pricing is determined by each dealer and may vary.
Technical Specifications
Flash
Compatible Cameras
Type A EOS cameras (E-TTL II/E-TTL autoflash)
Sync Timing
Green Light<br>
Lit: Radio Transmissions Okay
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Red Light<br>
Lit: Not Connected<br>
Blinking: Transmission Error/ Too many units (Sender units + sender units = more than 16 units)
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Orange Light<br>
Lit: Sub-sender transmission<br>
Blinking: Receiving remote release shooting, linked shooting signal
Sync Speed
High-Speed Sync provided (All models released in 2012 or later except for the EOS Rebel T5)
Flash Exposure Compensation
Flash exposure confirmation lamp lights in green<br>
* If it does not light, shooting is not performed with the standard exposure
Flash Exposure Confirmation
Flash exposure confirmation lamp lights in green<br><br>* If it does not light, shooting is not performed with the standard exposure
