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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
  • Limited Stock - Order Soon

    You Pay: $315.00


    The Canon ST-E3-RT Speedlite Transmitter can help you take full advantage of all the latest features on Canon's top-of-the-line 600EX-RT flash. 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 new 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 (Master units + slave units = more than 16 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 3.9 oz (110 g) excluding battery
  • Soft Case
  • 1-Year Limited Warranty

  • 0013803142488 210000020150