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Speedlite Transmitter ST-E3-RT (Ver. 2)

As low as $299.99
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  • High-Performance Hot Shoe Contacts for Reliable Information Transmission and Operation.
  • Dot Matrix LCD Panel Displays all Pertinent Information Simultaneously and Backlit Control Panel means Easy Operation.
  • Supports E-TTL II Flash, Manual Flash, Stroboscopic and Auto External Flash Metering.
  • Up to 5 groups, or 15 Individual Flashes can be Controlled via 1 Transmitter.
  • Updated to include Wireless Rear Curtain Synchronization, A Minimum Output Range of 1/8192, and FE Memory.
  • 8 Types of Custom Functions, 3 Types of Personal Functions. 


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Technical Specifications

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Main Unit Spec


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Product Disclaimer

*When used with the Speedlite EL-1 in combination with an EOS R5, EOS R6, EOS-1D X Mark III or EOS M50 Mark II camera. Some features will work with older Speedlite models such as 600EX II-RT, 600EX-RT and 430EX III-RT, and previous EOS cameras, but not all. As of February 3, 2021.

- Manual flash power below 1/128th not possible with 600EX-RT series, and 430EX-RT used as receiver units

- 2nd curtain sync can be used with Speedlite EL-1, 600EX-RT series and 430EX-RT receiver units, but with EOS R5, R6, or EOS-1D X Mark III cameras only