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Canon ST-E3-RT Speedlite Transmitter

Canon Model # 5743B002



  • Facilitates Wireless Transmission

  • 5 Groups or 15 Individual Speedlites

  • Range Up to 98.4'

  • Makes Complex Lighting Setups Simple

  • Compact Design & Reliable Construction

  • Clearly Laid Out Information Panel

  • Buttons With Back Lighting

    You Pay: $315.00
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    The Canon ST-E3-RT Speedlite Transmitter can help you take full advantage of all the features on Canon's Speedlite 600EX-RT and 430EX III-RT flashes. The ST-E3-RT makes complex lighting setups simple by facilitating radio-controlled, two-way wireless transmission up to 98.4' away, among up to five groups or fifteen individual Speedlites. It has controls similar to the Speedlite 600EX-RT, including multiple flash metering options, and a variety of flash modes. Compact design with highly reliable construction combined with a clearly laid-out information panel and buttons with back lighting make this an indispensible tool for advanced professional flash photography. The ST-E3-RT represents the next generation in wireless flash systems.

    Note: 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.

    • Newly-designed wireless system uses 2-way radio wave communication for enhanced communication among master and slave units. Achieves a transmission distance of up to 98.4' (30 m), all at a 360 degree angle.

    • 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.

    • Dot matrix LCD panel displays all pertinent information simultaneously and backlit control panel means easy operation.

    • 8 types of custom functions, 3 types of personal functions.

    • Improved hot shoe contacts for more reliable information transmission and operation.

    • Slave operation confirmation: 
      Green Light--Lit: Radio Transmissions Okay
      Red Light--Lit: Not Connected
      Blinking: Transmission Error/ Too many units
      Orange Light--Lit: Sub-master transmission
      Blinking: Receiving remote release shooting, linked shooting signal

    • Not compatible with earlier Speedlite models such as 580EX II
    Type Radio transmissions wireless Speedlite transmitter
    Transmission Range Approx. 98.4 ft. (30m)
    Flash Control Ratio control: 1:8 - 1:1 - 8:1, power 1/2-stop increments
    Coverage Flash coverage: Transmission Angle: 360° all around
    Power Source 2x AA/LRG Alkaline Batteries (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 of 73°F/+23°C).
    Dimensions 2.65 x 2.42 x 3.05" (67.4 x 61.5 x 77.4 mm)
    Weight 0.24 lb / 3.9 oz (110 g) excluding battery
    Packaging Info
    Package Weight 0.7 lb
    Box Dimensions (LxWxH) 6.3 x 4.7 x 4.4"
  • Canon ST-E3-RT Speedlite Transmitter
  • Soft Case
  • 1-Year Limited Warranty

  • California Customers: Proposition 65 WARNING Cancer and Reproductive Harm www.P65Warnings.ca.gov

    013803142488 210000020150