Wireless Transmitter

Canon Speedlite Transmitter ST-E3-RT Specifications

Specifications

  • Radio frequency remote flash trigger

  • Fire selected Speedlites from 30m away

  • Part of the E-TTL II flash system

  • Controls up to 15 flashguns

  • Remote camera triggering

  • Weather sealed against dust and moisture

Specifications in detail

Flash Modes

  • Auto Exposure Control
    E-TTL II / E-TTL
  • High Speed Sync (FP)
    Yes
  • Manual / Output Settings
    Yes - 1/1- 1/128
  • Manual Steps
    1/3 step
  • Strobe / Output Settings
    Yes - 1/4-1/128
  • Stroboscopic Frequency
    1-500Hz

Flash-Related Function

  • FE Lock
    Yes
  • FE Memory
    No
  • Flash Exposure Compensation
    Yes
  • Flash Exposure Bracketing
    Yes
  • Second-Curtain Flash Sync
    No
  • Modelling Flash
    Yes

Wireless Flash

  • Transmitter
    Yes
  • Transmission Type
    Radio
  • Transmitter Range
    Indoors: 30m
    Outdoors: 30m
  • Receiver
    No
  • Number of Groups
    5 - A,B,C,D or E
  • Number of Channels
    15
  • Remote Shutter Release
    Yes

AF Assist

  • AF-Assist Beam
    No
  • Number of AF Points Supported
    -
  • AF-Assist Beam Type
    -

Power Source

  • Battery
    2 x AA batteries
  • Minimum Recycling Time
    N/A
  • External Power Supply
    No

Construction

  • Dust and Water Resistance
    Yes
  • Mounting Foot Material
    Metal

Miscellaneous

  • Custom Function
    8 (3 personal functions)
  • Flash Settings from Camera Menus
    Yes
  • External Flash Exposure Sensor
    No
  • PC Terminal
    No
  • Accessories (Included)
    Soft case
  • Accessories (Optional)
    Off-Camera Shoe Cord OC-E3, Release Cable SR-N3
  • Compatible Speedlites
    EL-1, 600EX II-RT, 600EX-RT, 430EX III-RT

Physical Specifications

  • Dimensions (W x H x D)
    67.4 x 61.5 x 77.4
  • Weight
    110g