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

BH #CASTE3RTV2 • MFR #5743B012
Canon Speedlite Transmitter ST-E3-RT (Ver. 2)
Key Features
  • Wireless Rear Curtain Synchronization
  • 5 Groups or 15 Speedlites, Range: 98.4'
  • 8 Custom Functions, 3 Personal Function
  • LCD Information Panel, Backlit Controls
Building on the design and popularity of its predecessor, the second version of the Canon Speedlite Transmitter ST-E3-RT can help you take full advantage of all the features on flashes such as the Speedlite EL-1, 600EX-RT, and 430EX III-RT.
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$299.00
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Canon ST-E3-RT V2 Overview

Building on the design and popularity of its predecessor, the second version of the Canon Speedlite Transmitter ST-E3-RT can help you take full advantage of all the features on flashes such as the Speedlite EL-1, 600EX-RT, and 430EX III-RT.

Version two of the ST-E3-RT makes complex lighting setups simple by facilitating radio-controlled, two-way wireless transmission at distances up to 98.4' among up to five groups or 15 individual Speedlites. Updates include Wireless Rear Curtain Synchronization for the look of motion in your subjects and a remarkable minimum power range of 1/81922 for very low light shooting. Another outstanding feature is FE Memory that allows you to lock-in an E-TTL flash exposure level, even in complex multi-flash setups, and subsequently continue to use it for the same scene or subject. Yet another upgrade is eight types of custom functions and three types of personal functions. Compact design with highly reliable construction combined with a clearly laid-out information panel and buttons with back lighting make this an indispensable tool for advanced professional flash photography.

Benefits
  • Updated to include Wireless Rear Curtain Synchronization, a minimum output range of 1/8192, and FE Memory
  • Up to five groups or 15 individual flashes can be controlled via one 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
  • Eight types of custom functions, three types of personal functions
  • High-performance hot shoe contacts for reliable information transmission and operation
  • UPC: 013803344998

    Canon ST-E3-RT V2 Specs

    Key Specs
    Groups
    5
    Wireless Range
    98.4' / 30.0 m
    Bottom Mount
    Transmitter: Hot Foot (Locking)
    Wireless
    Groups
    5
    Wireless Range
    98.4' / 30.0 m
    General
    Control Modes
    Auto, E-TTL/E-TTL II, Group, Manual
    Mounting
    Bottom Mount
    Transmitter: Hot Foot (Locking)
    Physical
    Dimensions
    3 x 2.7 x 2.4" / 76.2 x 68.6 x 61 mm
    Weight
    3.8 oz / 108 g
    Packaging Info
    Package Weight
    0.62 lb
    Box Dimensions (LxWxH)
    6.3 x 4.6 x 4.4"

    Canon ST-E3-RT V2 Reviews

    See any errors on this page? Let us know

    Will this support second curtain sync with Canon ...

    Will this support second curtain sync with Canon RT flashes?
    Asked by: John
    I cant get wireless second curtain sync to work.
    Answered by: Anonymous
    Date published: 2022-03-27

    Will Canon ST-E3-RT work with Canon EL-5?

    Will Canon ST-E3-RT work with Canon EL-5?
    Asked by: Timothy
    Yes, but Canon's wireless system is plagued with reliability issues.
    Answered by: Jeff
    Date published: 2023-07-26

    Will it work with both canon flash and Godox ...

    Will it work with both canon flash and Godox 400pro?
    Asked by: Laura
    No. System will only communicate with canons protocol system.
    Answered by: hectorm
    Date published: 2022-04-24

    Will this item support shooting in (camera) ...

    Will this item support shooting in (camera) Manual mode when combined with a EOS 1 DX Mark III and a Speedlite EL-1 or am I limited to Program mode?
    Asked by: John
    ***********Please send this to SLR Q&A **************
    Answered by: Joseph
    Date published: 2023-03-10

    Are there any third party strobes that work with ...

    Are there any third party strobes that work with this transmitter
    Asked by: Blake
    No, the Canon Speedlite Transmitter ST-E3-RT (Ver. 2) is proprietary to Canon's system.
    Answered by: Elliot
    Date published: 2023-07-28

    Do you need this for off camera flash with a R6?

    Do you need this for off camera flash with a R6?
    Asked by: Todd
    If you are using Canon brand RT flashes, you do need the Canon Speedlite Transmitter ST-E3-RT (Ver. 2) on the camera. These are some of the Canon flash options, https://bhpho.to/35Vy50c
    Answered by: Robert
    Date published: 2022-03-14

    Would this unit work with Metz Mecablitz MS-1 ...

    Would this unit work with Metz Mecablitz MS-1 ring flash?
    Asked by: Lev
    No. The following system is designed and made mostly for canons protocol system. But will work with the other following flash units mentioned Bower SFD5400 Bower SFD740 Bower SFD970 Canon 600EX II-RT Canon 600EX-RT Canon EL-1 Canon EOS 80D Canon EOS 90D Canon MR-14EX Canon Speedlite 430EX II Canon Speedlite 430EX III-RT Energizer ENF-300 Metz M360 Neewer NW-670 Nissin i400 Phottix Indra500LC TTL Phottix Laso Receiver Polaroid PL126PZ Polaroid PL150D Polaroid PL160D Quantum Instruments Qflash TRIO Basic Quantum Instruments Qflash TRIO QF8 RPS Lighting D728AF RPS Lighting DPZ420AF Sunpak DF3000 Yongnuo YN600EX-RT II
    Answered by: hectorm
    Date published: 2022-11-06

    Does this work with Sony?

    Does this work with Sony?
    Asked by: Sean
    The Canon Speedlite Transmitter ST-E3-RT (Ver. 2) BH #CASTE3RTV2 is not compatible with Sony.
    Answered by: Reuben
    Date published: 2024-01-23
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