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Canon ST-E3-RT Speedlite Transmitter

B&H # CASTE3RT MFR # 5743B002
Canon ST-E3-RT Speedlite Transmitter

Canon ST-E3-RT Speedlite Transmitter On View

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Product Highlights

  • 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
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You Pay: $263.20

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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
Orange Light--Lit: Sub-master transmission
Blinking: Receiving remote release shooting, linked shooting signal
Not compatible with earlier Speedlite models such as 580EX II
UPC: 013803142488
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
Packaging Info
Package Weight 1.0 lb
Box Dimensions (LxWxH) 6.3 x 4.7 x 4.4"
Canon ST-E3-RT Speedlite Transmitter
  • Soft Case
  • 1-Year Limited Warranty
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