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The Speedlite Transmitter ST-E3-RT Ver.3 provides continued support of Canon camera’s that feature a standard hot shoe not compatible with multi-function shoe equipped cameras. Many of the most popular features carry over to version 3 such as wireless rear curtain synchronization to capture ambient light trails and convey a sense of speed for moving subjects. An expansive minimum output range down to 1/8192 power and FE Memory as part of the radio transmitter so you can lock-in an E-TTL flash exposure level even in complex multi-flash set-ups and continue to use it for the same scene or subject. Radio controlled two-way wireless transmission up to 98.4 ft. up to five groups or fifteen individual Speedlites a dot matrix LCD with backlighting intuitive controls and more.
- 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